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DFARS Specialty Metals
About Counterbores
Create flat-bottomed holes, so your screw heads sit flush, recessed, or slightly raised.
Drill-Point Counterbores
High-Speed Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Shank | Uncoated | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body Dia. | Drill Tip Dia. | Overall Lg. | Dia. | Type | No. of Flutes | Max. Hole Drilling Dp. | Mfr. | Each | |||
| No. 5 | 0.220" | 0.138" | 1 7/32" | 1/4" | Round | 2 | 0.25" | Link Industries | 29445A11 | 000000 | ||
| No. 5 | 0.220" | 0.138" | 2" | 1/4" | Round | 2 | 0.414" | Link Industries | 29445A311 | 00000 | ||
| No. 6 | 0.242" | 0.15" | 1 7/32" | 1/4" | Round | 2 | 0.25" | Link Industries | 29445A12 | 00000 | ||
| No. 6 | 0.242" | 0.15" | 2" | 1/4" | Round | 2 | 0.45" | Link Industries | 29445A312 | 00000 | ||
| No. 8 | 0.290" | 0.178" | 1 15/32" | 5/16" | Round | 2 | 0.281" | Link Industries | 29445A13 | 00000 | ||
| No. 8 | 0.290" | 0.178" | 2 1/4" | 3/8" | Round | 2 | 0.534" | Link Industries | 29445A313 | 00000 | ||
| No. 10 | 0.332" | 0.2" | 1 1/2" | 5/16" | Round | 2 | 0.312" | Link Industries | 29445A14 | 00000 | ||
| No. 10 | 0.332" | 0.2" | 2 1/4" | 3/8" | Round | 2 | 0.6" | Link Industries | 29445A314 | 00000 | ||
| 1/4" | 0.406" | 0.28" | 1 3/4" | 7/16" | Round | 2 | 0.375" | Link Industries | 29445A15 | 00000 | ||
| 1/4" | 0.406" | 0.28" | 2 3/4" | 3/8" | Round | 2 | 0.84" | Link Industries | 29445A315 | 00000 | ||
| 5/16" | 0.490" | 0.34" | 1 15/16" | 1/2" | Round | 2 | 0.375" | Link Industries | 29445A16 | 00000 | ||
| 5/16" | 0.490" | 0.34" | 3" | 1/2" | Round | 2 | 1.02" | Link Industries | 29445A316 | 00000 | ||
| 3/8" | 0.593" | 0.406" | 2 11/32" | 5/8" | Round | 2 | 0.468" | Link Industries | 29445A17 | 00000 | ||
| 3/8" | 0.593" | 0.406" | 3 1/2" | 1/2" | Round | 2 | 1.218" | Link Industries | 29445A317 | 00000 | ||
| 7/16" | 0.687" | 0.468" | 2 1/2" | 5/8" | Round | 2 | 0.5" | Link Industries | 29445A18 | 00000 | ||
| 7/16" | 0.687" | 0.468" | 4" | 1/2" | Round | 2 | 1.404" | Link Industries | 29445A318 | 00000 | ||
| 1/2" | 0.781" | 0.532" | 2 11/16" | 5/8" | Round | 2 | 0.562" | Link Industries | 29445A19 | 00000 | ||
| 1/2" | 0.781" | 0.532" | 4 1/2" | 1/2" | Round | 2 | 1.596" | Link Industries | 29445A319 | 000000 | ||
| M3 | 5.9 mm | 3.57 mm | 1 1/4" | 1/4" | Round | 2 | 6.35 mm | Link Industries | 29445A21 | 00000 | ||
| M4 | 7.5 mm | 4.36 mm | 1 3/8" | 1/4" | Round | 2 | 7.54 mm | Link Industries | 29445A22 | 00000 | ||
| M5 | 9.1 mm | 5.55 mm | 1 1/2" | 5/16" | Round | 2 | 7.94 mm | Link Industries | 29445A23 | 00000 | ||
| M6 | 10.7 mm | 6.35 mm | 1 9/16" | 5/16" | Round | 2 | 9.52 mm | Link Industries | 29445A24 | 00000 | ||
| M8 | 13.4 mm | 8.73 mm | 1 13/16" | 7/16" | Round | 2 | 11.11 mm | Link Industries | 29445A25 | 00000 | ||
| M10 | 16.6 mm | 10.32 mm | 2 1/16" | 1/2" | Round | 2 | 14.29 mm | Link Industries | 29445A26 | 00000 | ||
| M12 | 18.7 mm | 12.7 mm | 2 7/16" | 5/8" | Round | 2 | 15.87 mm | Link Industries | 29445A27 | 00000 | ||
| M14 | 21.8 mm | 14.68 mm | 2 5/8" | 5/8" | Round | 2 | 16.67 mm | Link Industries | 29445A28 | 00000 | ||
| M16 | 24.6 mm | 16.67 mm | 2 3/4" | 5/8" | Round | 2 | 17.46 mm | Link Industries | 29445A29 | 00000 | ||
Drill-Bit Counterbores for Wood
Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
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Depth Stops |
Counterbores | Depth Stops | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Uncoated | ||||||||||
Body Dia. | Drill Bit Size | Overall Lg. | No. of Flutes | Mfr. | Each | Each | ||||
| 5/8" | 3/16" | 1" | 4 | W. L. Fuller | 3105A11 | 000000 | 2903A17 | 00000 | ||
| 5/8" | 1/4" | 1" | 4 | W. L. Fuller | 3105A21 | 00000 | 2903A17 | 0000 | ||
| 3/4" | 1/4" | 1" | 4 | W. L. Fuller | 3105A12 | 00000 | 2903A18 | 0000 | ||
| 3/4" | 5/16" | 1 1/8" | 4 | W. L. Fuller | 3105A13 | 00000 | 2903A18 | 0000 | ||
| 7/8" | 3/8" | 1 1/4" | 4 | W. L. Fuller | 3105A14 | 00000 | 2903A19 | 0000 | ||
| 1" | 7/16" | 1 3/8" | 4 | W. L. Fuller | 3105A15 | 00000 | 2903A21 | 0000 | ||
| 1 1/8" | 1/2" | 1 1/2" | 4 | W. L. Fuller | 3105A16 | 00000 | 2903A32 | 0000 | ||
| 1 1/4" | 9/16" | 1 5/8" | 4 | W. L. Fuller | 3105A22 | 00000 | 2903A23 | 0000 | ||
Quick-Change Hex Drill-Bit Counterbores for Wood
Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
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Depth Stops |
Counterbores | Depth Stops | Replacement Drill Bits | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shank | Black Oxide | ||||||||||||||
Body Dia. | Drill Bit Size | Overall Lg. | Size | Type | No. of Flutes | Max. Hole Drilling Dp. | Mfr. | Each | Each | Each | |||||
| 3/8" | 1/8" | 2 7/8" | 1/4" | Quick-Change Hex | 3 | 1.1" | Make It Snappy Tools | 3438N21 | 000000 | 3438N11 | 000000 | 2908A35 | 00000 | ||
| 1/2" | 1/8" | 2 7/8" | 1/4" | Quick-Change Hex | 3 | 1.2" | Make It Snappy Tools | 3438N22 | 00000 | 3438N11 | 00000 | 2908A35 | 0000 | ||
| 5/8" | 3/16" | 3 1/4" | 1/4" | Quick-Change Hex | 3 | 1.3" | Make It Snappy Tools | 3438N23 | 00000 | ——— | 0 | 2908A39 | 0000 | ||
| 5/8" | 1/4" | 3 21/32" | 1/4" | Quick-Change Hex | 3 | 2.7" | Make It Snappy Tools | 3438N311 | 00000 | ——— | 0 | 2908A44 | 0000 | ||
| 3/4" | 3/16" | 3 1/4" | 1/4" | Quick-Change Hex | 3 | 1.3" | Make It Snappy Tools | 3438N24 | 00000 | ——— | 0 | 2908A39 | 0000 | ||
| 3/4" | 1/4" | 3 5/8" | 1/4" | Quick-Change Hex | 3 | 1.6" | Make It Snappy Tools | 3438N25 | 00000 | ——— | 0 | 2908A44 | 0000 | ||
| 3/4" | 5/16" | 3 31/32" | 1/4" | Quick-Change Hex | 3 | 3" | Make It Snappy Tools | 3438N312 | 00000 | ——— | 0 | 2908A48 | 00000 | ||
| 1" | 7/16" | 4 11/16" | 1/4" | Quick-Change Hex | 3 | 3.7" | Make It Snappy Tools | 3438N313 | 00000 | ——— | 0 | 2908A57 | 00000 | ||
Drill-Point Counterbore Sets
For Screw Size | Overall Length | Shank Type | No. of Flutes | No. of Pieces | Container Type | Mfr. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|
Uncoated High-Speed Steel | ||||||||||
| No. 5, No. 6, No. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2" | 1.21875", 1.21875", 1.46875", 1.5", 1.75", 1.9375", 2.34375", 2.5", 2.6875" | Round | 2 | 9 | Plastic Case | Link Industries | 9940N111 | 0000000 | ||
| No. 5, No. 6, No. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2" | 2", 2", 2.25", 2.25", 2.75", 3", 3.5", 4", 4.5" | Round | 2 | 9 | Plastic Case | Link Industries | 9940N112 | 000000 | ||
| M3, M4, M5, M6, M8, M10, M12, M14, M16 | 1.28125", 1.40625", 1.5625", 1.625", 1.90625", 2.15625", 2.5625", 2.84375", 3.5" | Round | 2 | 9 | Plastic Case | Link Industries | 9940N113 | 000000 | ||
Drill-Bit Counterbore Sets for Wood
Body Dia. | For Drill Bit Size | No. of Pieces | Container Type | Mfr. | Each | |||
|---|---|---|---|---|---|---|---|---|
Uncoated Steel | ||||||||
| 5/8", 3/4", 7/8", 1", 1 1/8" | 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" | 6 | Wood Stand | W. L. Fuller | 3105A31 | 0000000 | ||
Adjustable-Diameter Counterbores
High-Speed Steel Blade
![]() | ![]() |
Round Shank | Morse Taper Shank |
Counterbores | Replacement Counterbore Blades | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shank | |||||||||||||||
Body Dia. | Overall Lg. | Dia. | Type | Machine Taper No. | Pilot Lg. | No. of Flutes | Pilot Head Dia. | Pilot Shank Dia. | Mfr. | Each | Pkg. Qty. | Pkg. | |||
| 1" to 1 1/4" | 4" | 1/2" | Round | — | 0.438" | 2 | 7/16" | 3/16" | Alvord-Polk Tool | 3104A11 | 0000000 | 2 | 3104A31 | 0000000 | |
| 1 1/4" to 1 5/8" | 4 3/8" | 1/2" | Round | — | 0.563" | 2 | 9/16" | 1/4" | Alvord-Polk Tool | 3104A14 | 000000 | 2 | 3104A32 | 000000 | |
| 2 1/8" to 2 7/8" | 6" | — | Morse Taper | Morse 3 | 0.750" | 2 | 3/4" | 3/8" | Alvord-Polk Tool | 3104A22 | 000000 | 2 | 3104A34 | 000000 | |
Built-in-Pilot Counterbores
High-Speed Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Pilot | Shank | Uncoated | Titanium Nitride (TiN) Coated | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body Dia. | Dia. | Lg. | Overall Lg. | Dia. | Type | No. of Flutes | Mfr. | Each | Each | ||||
| No. 4 | 0.186" | 0.112" | 0.156" | 3 7/8" | 5/32" | Round | 4 | Alvord-Polk Tool | 2919A31 | 000000 | 28225A31 | 000000 | ||
| No. 5 | 0.205" | 1/8" | 0.188" | 4 1/8" | 3/16" | Round | 4 | Alvord-Polk Tool | 2919A32 | 00000 | 28225A32 | 00000 | ||
| No. 6 | 0.228" | 0.138" | 0.219" | 4 5/8" | 7/32" | Round | 4 | Alvord-Polk Tool | 2919A33 | 00000 | 28225A33 | 00000 | ||
| No. 8 | 0.272" | 0.164" | 0.250" | 5" | 1/4" | Round | 4 | Alvord-Polk Tool | 2919A34 | 00000 | 28225A34 | 00000 | ||
| No. 10 | 0.314" | 0.19" | 0.281" | 5 1/4" | 9/32" | Round | 4 | Alvord-Polk Tool | 2919A35 | 00000 | 28225A35 | 00000 | ||
| 1/4" | 0.382" | 1/4" | 0.313" | 5 5/8" | 5/16" | Round | 4 | Alvord-Polk Tool | 2919A36 | 00000 | 28225A36 | 00000 | ||
| 5/16" | 0.475" | 5/16" | 0.375" | 6 1/8" | 3/8" | Round | 4 | Alvord-Polk Tool | 2919A37 | 00000 | 28225A37 | 00000 | ||
| 3/8" | 0.572" | 3/8" | 0.500" | 6 1/2" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A38 | 00000 | 28225A38 | 00000 | ||
| 7/16" | 0.663" | 7/16" | 0.500" | 7" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A39 | 00000 | 28225A39 | 000000 | ||
| 1/2" | 0.757" | 1/2" | 0.500" | 7 1/2" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A41 | 00000 | 28225A41 | 000000 | ||
| 5/8" | 0.945" | 5/8" | 0.625" | 7 5/8" | 5/8" | Round | 4 | Alvord-Polk Tool | 2919A42 | 000000 | 28225A42 | 000000 | ||
| 3/4" | 1.133" | 3/4" | 0.750" | 7 3/4" | 3/4" | Round | 4 | Alvord-Polk Tool | 2919A43 | 000000 | 28225A43 | 000000 | ||
| 7/8" | 1.322" | 7/8" | 0.875" | 8 1/8" | 7/8" | Round | 4 | Alvord-Polk Tool | 2919A47 | 000000 | 28225A44 | 000000 | ||
| 1" | 1.510" | 1" | 1.000" | 8 1/2" | 1" | Round | 4 | Alvord-Polk Tool | 2919A45 | 000000 | 28225A45 | 000000 | ||
| M4 | 8.0 mm | 3.3 mm | 0.197" | 2 3/4" | 3/16" | Round | 3 | Dormer Pramet | 2919A27 | 00000 | ——— | 0 | ||
| M5 | 10.0 mm | 4.2 mm | 0.217" | 3 1/8" | 5/16" | Round | 3 | Dormer Pramet | 2919A28 | 00000 | ——— | 0 | ||
| M6 | 11.0 mm | 5.0 mm | 0.236" | 3 1/8" | 5/16" | Round | 3 | Dormer Pramet | 2919A29 | 00000 | ——— | 0 | ||
| M8 | 15.0 mm | 6.8 mm | 0.315" | 3 7/8" | 1/2" | Round | 3 | Dormer Pramet | 2919A97 | 00000 | ——— | 0 | ||
| M10 | 18.0 mm | 8.5 mm | 0.394" | 3 7/8" | 1/2" | Round | 3 | Dormer Pramet | 2919A98 | 00000 | ——— | 0 | ||
| M12 | 20.0 mm | 10.2 mm | 0.394" | 3 7/8" | 1/2" | Round | 3 | Dormer Pramet | 2919A99 | 00000 | ——— | 0 | ||
Cobalt Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Pilot | Shank | Uncoated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body Dia. | Dia. | Lg. | Overall Lg. | Dia. | Type | No. of Flutes | Mfr. | Each | |||
| No. 4 | 0.186" | 0.112" | 0.188" | 3" | 5/32" | Round | 3 | Keo | 11162N11 | 000000 | ||
| No. 6 | 0.228" | 0.138" | 0.203" | 3" | 7/32" | Round | 3 | Keo | 11162N13 | 00000 | ||
| No. 8 | 0.272" | 0.164" | 0.250" | 3" | 1/4" | Round | 3 | Keo | 11162N14 | 00000 | ||
| No. 10 | 0.314" | 0.19" | 0.266" | 4 1/2" | 9/32" | Round | 3 | Keo | 11162N15 | 00000 | ||
| 1/4" | 0.382" | 1/4" | 0.313" | 4 1/2" | 5/16" | Round | 3 | Keo | 11162N16 | 00000 | ||
| 5/16" | 0.475" | 5/16" | 0.359" | 4 1/2" | 3/8" | Round | 3 | Keo | 11162N17 | 00000 | ||
| 3/8" | 0.572" | 3/8" | 0.500" | 5" | 1/2" | Round | 3 | Keo | 11162N18 | 00000 | ||
| 1/2" | 0.757" | 1/2" | 0.500" | 6" | 1/2" | Round | 3 | Keo | 11162N21 | 000000 | ||
Carbide-Tipped Steel
Pilot | Shank | Uncoated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body Dia. | Dia. | Lg. | Overall Lg. | Dia. | Type | No. of Flutes | Mfr. | Each | |||
| 1/4" | 0.382" | 1/4" | 0.313" | 5 5/8" | 5/16" | Round | 3 | Rock River Tool | 3218A111 | 0000000 | ||
| 5/16" | 0.475" | 5/16" | 0.375" | 6 1/8" | 3/8" | Round | 3 | Rock River Tool | 3218A121 | 000000 | ||
| 3/8" | 0.572" | 3/8" | 0.500" | 6 1/2" | 1/2" | Round | 3 | Rock River Tool | 3218A131 | 000000 | ||
| 7/16" | 0.663" | 7/16" | 0.500" | 7" | 1/2" | Round | 3 | Rock River Tool | 3218A141 | 000000 | ||
| 1/2" | 0.757" | 1/2" | 0.500" | 7 1/2" | 1/2" | Round | 3 | Rock River Tool | 3218A151 | 000000 | ||
| 5/8" | 0.945" | 5/8" | 0.625" | 7 5/8" | 5/8" | Round | 3 | Rock River Tool | 3218A161 | 000000 | ||
| 3/4" | 1.133" | 3/4" | 0.750" | 7 3/4" | 3/4" | Round | 3 | Rock River Tool | 3218A171 | 000000 | ||
| 7/8" | 1.322" | 7/8" | 0.875" | 8 1/8" | 7/8" | Round | 4 | Rock River Tool | 3218A181 | 000000 | ||
| 1" | 1.510" | 1" | 1.000" | 8 1/2" | 1" | Round | 4 | Rock River Tool | 3218A191 | 000000 | ||
Changeable-Pilot Counterbores
High-Speed Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
![]() | ![]() |
Round Shank | Reduced-Round Shank |
Shank | Uncoated | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Body Dia. | Overall Lg. | For Pilot Shank Dia. | Dia. | Type | No. of Flutes | Mfr. | Each | |||
| 3/16" | 3" | 3/32" | 15/64" | Round | 3 | Cleveland | 3015A11 | 0000000 | ||
| 7/32" | 3" | 3/32" | 15/64" | Round | 3 | Cleveland | 3015A12 | 000000 | ||
| 1/4" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A11 | 00000 | ||
| 1/4" | 3 13/16" | 3/32" | 15/64" | Round | 3 | F&D Tool | 3015A13 | 00000 | ||
| 9/32" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A12 | 00000 | ||
| 9/32" | 3 13/16" | 3/32" | 17/64" | Round | 3 | F&D Tool | 3015A14 | 00000 | ||
| 5/16" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A13 | 00000 | ||
| 5/16" | 3 13/16" | 3/32" | 19/64" | Round | 3 | F&D Tool | 3015A15 | 00000 | ||
| 11/32" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A14 | 00000 | ||
| 11/32" | 3 13/16" | 3/32" | 5/16" | Round | 3 | F&D Tool | 3015A16 | 00000 | ||
| 3/8" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A15 | 00000 | ||
| 3/8" | 4 1/16" | 5/32" | 5/16" | Round | 3 | F&D Tool | 3015A17 | 00000 | ||
| 13/32" | 2 13/16" | 1/8" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A16 | 00000 | ||
| 13/32" | 4 1/16" | 5/32" | 3/8" | Round | 3 | F&D Tool | 3015A18 | 00000 | ||
| 7/16" | 2 13/16" | 1/8" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A17 | 00000 | ||
| 7/16" | 4 1/16" | 5/32" | 3/8" | Round | 3 | F&D Tool | 3015A19 | 00000 | ||
| 15/32" | 2 13/16" | 1/8" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A18 | 00000 | ||
| 15/32" | 4 5/16" | 3/16" | 7/16" | Round | 3 | F&D Tool | 3015A21 | 00000 | ||
| 1/2" | 2 13/16" | 1/8" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A19 | 00000 | ||
| 1/2" | 4 5/16" | 3/16" | 7/16" | Round | 3 | F&D Tool | 3015A22 | 00000 | ||
| 17/32" | 2 13/16" | 1/8" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A21 | 00000 | ||
| 17/32" | 4 5/16" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A23 | 00000 | ||
| 9/16" | 2 13/16" | 1/8" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A22 | 00000 | ||
| 9/16" | 4 5/16" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A24 | 00000 | ||
| 19/32" | 2 13/16" | 1/8" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A23 | 00000 | ||
| 19/32" | 5 1/8" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A25 | 00000 | ||
| 5/8" | 2 13/16" | 1/8" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A24 | 00000 | ||
| 5/8" | 5 1/8" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A26 | 00000 | ||
| 21/32" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A25 | 00000 | ||
| 21/32" | 5 1/8" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A27 | 00000 | ||
| 11/16" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A26 | 00000 | ||
| 11/16" | 5 1/8" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A28 | 00000 | ||
| 23/32" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A27 | 00000 | ||
| 23/32" | 5 3/8" | 1/4" | 1/2" | Round | 3 | F&D Tool | 3015A29 | 00000 | ||
| 3/4" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A28 | 00000 | ||
| 3/4" | 5 3/8" | 1/4" | 1/2" | Round | 3 | F&D Tool | 3015A31 | 00000 | ||
| 25/32" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A29 | 00000 | ||
| 25/32" | 5 1/8" | 1/4" | 5/8" | Round | 3 | F&D Tool | 3015A32 | 00000 | ||
| 13/16" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A31 | 00000 | ||
| 13/16" | 5 1/8" | 1/4" | 5/8" | Round | 3 | F&D Tool | 3015A33 | 000000 | ||
| 7/8" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A33 | 00000 | ||
| 7/8" | 5 3/8" | 1/4" | 3/4" | Round | 3 | F&D Tool | 3015A34 | 000000 | ||
| 15/16" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A35 | 000000 | ||
| 15/16" | 6 1/8" | 1/4" | 3/4" | Round | 3 | F&D Tool | 3015A43 | 000000 | ||
| 1" | 3 1/8" | 3/16" | 1/4" | Reduced Round | 4 | Mist Cutting Tools | 3102A37 | 000000 | ||
| 1" | 6 3/8" | 5/16" | 3/4" | Round | 3 | F&D Tool | 3015A36 | 000000 | ||
| 1 1/8" | 6 3/8" | 5/16" | 1" | Round | 3 | F&D Tool | 3015A38 | 000000 | ||
Carbide-Tipped Steel
![]() | ![]() |
Round Shank | Reduced-Round Shank |
Shank | Uncoated | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Body Dia. | Overall Lg. | For Pilot Shank Dia. | Dia. | Type | No. of Flutes | Mfr. | Each | |||
| 1/4" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A21 | 000000 | ||
| 1/4" | 3 13/16" | 3/32" | 15/64" | Round | 3 | Rock River Tool | 2814A81 | 000000 | ||
| 9/32" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A22 | 00000 | ||
| 9/32" | 3 13/16" | 3/32" | 17/64" | Round | 3 | Rock River Tool | 2814A421 | 000000 | ||
| 5/16" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A23 | 00000 | ||
| 5/16" | 3 13/16" | 3/32" | 19/64" | Round | 3 | Rock River Tool | 2814A591 | 000000 | ||
| 11/32" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A24 | 00000 | ||
| 11/32" | 3 13/16" | 3/32" | 5/16" | Round | 3 | Rock River Tool | 2814A311 | 000000 | ||
| 3/8" | 2 3/8" | 3/32" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A25 | 00000 | ||
| 3/8" | 4 1/16" | 5/32" | 5/16" | Round | 3 | Rock River Tool | 2814A83 | 000000 | ||
| 13/32" | 2 3/4" | 1/8" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A26 | 00000 | ||
| 13/32" | 4 1/16" | 5/32" | 3/8" | Round | 3 | Rock River Tool | 2814A321 | 000000 | ||
| 7/16" | 2 3/4" | 1/8" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A27 | 00000 | ||
| 7/16" | 4 1/16" | 5/32" | 3/8" | Round | 3 | Rock River Tool | 2814A84 | 000000 | ||
| 15/32" | 2 3/4" | 1/8" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A28 | 00000 | ||
| 15/32" | 4 5/16" | 3/16" | 7/16" | Round | 3 | Rock River Tool | 2814A331 | 000000 | ||
| 1/2" | 2 3/4" | 1/8" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A29 | 00000 | ||
| 1/2" | 4 5/16" | 3/16" | 7/16" | Round | 3 | Rock River Tool | 2814A85 | 000000 | ||
| 17/32" | 2 3/4" | 1/8" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A31 | 00000 | ||
| 17/32" | 4 5/16" | 3/16" | 1/2" | Round | 3 | Rock River Tool | 2814A341 | 000000 | ||
| 9/16" | 2 3/4" | 1/8" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A32 | 000000 | ||
| 9/16" | 4 5/16" | 3/16" | 1/2" | Round | 3 | Rock River Tool | 2814A86 | 000000 | ||
| 19/32" | 2 3/4" | 1/8" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A33 | 000000 | ||
| 19/32" | 5 1/8" | 3/16" | 1/2" | Round | 3 | Rock River Tool | 2814A351 | 000000 | ||
| 5/8" | 2 3/4" | 1/8" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A34 | 000000 | ||
| 5/8" | 5 1/8" | 3/16" | 1/2" | Round | 3 | Rock River Tool | 2814A87 | 000000 | ||
| 21/32" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A35 | 000000 | ||
| 21/32" | 5 1/8" | 3/16" | 1/2" | Round | 3 | Rock River Tool | 2814A361 | 000000 | ||
| 11/16" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A36 | 000000 | ||
| 11/16" | 5 1/8" | 3/16" | 1/2" | Round | 3 | Rock River Tool | 2814A371 | 000000 | ||
| 23/32" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A37 | 000000 | ||
| 23/32" | 5 3/8" | 1/4" | 1/2" | Round | 3 | Rock River Tool | 2814A381 | 000000 | ||
| 3/4" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A38 | 000000 | ||
| 3/4" | 5 3/8" | 1/4" | 1/2" | Round | 3 | Rock River Tool | 2814A89 | 000000 | ||
| 25/32" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A39 | 000000 | ||
| 25/32" | 5 3/8" | 1/4" | 5/8" | Round | 3 | Rock River Tool | 2814A391 | 000000 | ||
| 13/16" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A41 | 000000 | ||
| 13/16" | 5 3/8" | 1/4" | 5/8" | Round | 3 | Rock River Tool | 2814A91 | 000000 | ||
| 7/8" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A43 | 000000 | ||
| 7/8" | 5 3/8" | 1/4" | 3/4" | Round | 3 | Rock River Tool | 2814A531 | 000000 | ||
| 15/16" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A45 | 000000 | ||
| 15/16" | 6 1/8" | 1/4" | 3/4" | Round | 3 | Rock River Tool | 2814A561 | 000000 | ||
| 1" | 2 3/4" | 3/16" | 1/4" | Reduced Round | 3 | Rock River Tool | 31125A47 | 000000 | ||
| 1" | 6 3/8" | 5/16" | 3/4" | Round | 3 | Rock River Tool | 2814A94 | 000000 | ||
| 1 1/8" | 6 3/8" | 5/16" | 1" | Round | 3 | Rock River Tool | 2814A581 | 000000 | ||
Counterbores for High-Profile Rounded-Head Screws
High-Speed Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Uncoated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body Dia. | Overall Lg. | Shank Type | No. of Flutes | Pilot Lg. | Mfr. | Each | |||
| No. 0 | 0.110" | 2 1/2" | Round | 2 | 0.110" | Republic Drill | 2909A22 | 000000 | ||
| No. 1 | 0.133" | 2 1/2" | Round | 2 | 0.170" | Republic Drill | 2909A23 | 00000 | ||
| No. 2 | 0.155" | 2 1/2" | Round | 2 | 0.120" | Republic Drill | 2909A13 | 00000 | ||
| No. 3 | 0.176" | 2 1/2" | Round | 2 | 0.120" | Republic Drill | 2909A14 | 00000 | ||
| No. 4 | 0.198" | 2 5/8" | Round | 2 | 0.170" | Republic Drill | 2909A15 | 00000 | ||
| No. 5 | 0.220" | 2 5/8" | Round | 2 | 0.220" | Republic Drill | 2909A16 | 00000 | ||
| No. 6 | 0.241" | 2 5/8" | Round | 2 | 0.230" | Republic Drill | 2909A17 | 00000 | ||
| No. 8 | 0.285" | 2 3/4" | Round | 2 | 0.120" | Republic Drill | 2909A18 | 00000 | ||
| No. 10 | 0.328" | 2 7/8" | Round | 2 | 0.190" | Republic Drill | 2909A19 | 00000 | ||
| No. 12 | 0.372" | 3" | Round | 2 | 0.250" | Republic Drill | 2909A21 | 00000 | ||
Fast-Cutting Smooth-Finish Drill-Bit Counterbores for Wood
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Carbon Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Uncoated | ||||||||
|---|---|---|---|---|---|---|---|---|
Body Dia. | Overall Lg. | For Shank Dia. | For Min. Drill Bit Cutting Dia. | Mfr. | Each | |||
| 1 1/8" | 1" | 1/2" | 1/2" | Stern | 2921A12 | 000000 | ||
| 1 1/4" | 1" | 1/2" | 1/2" | Stern | 2921A13 | 00000 | ||
| 1 3/8" | 1" | 1/2" | 1/2" | Stern | 2921A14 | 00000 | ||
| 1 1/2" | 1" | 1/2" | 1/2" | Stern | 2921A15 | 00000 | ||
| 1 3/4" | 1" | 1/2" | 1/2" | Stern | 2921A17 | 000000 | ||
| 2" | 1 1/4" | 1/2" | 1/2" | Stern | 2921A19 | 000000 | ||
| 2 1/2" | 1 1/4" | 1/2" | 1/2" | Stern | 2921A24 | 000000 | ||
Oversized Counterbores
High-Speed Steel%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Pilot | Shank | Uncoated | Titanium Nitride (TiN) Coated | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body Dia. | Dia. | Lg. | Overall Lg. | Dia. | Type | No. of Flutes | Mfr. | Each | Each | ||||
1/64" Oversize | ||||||||||||||
| No. 4 | 0.206" | 0.128" | 0.156" | 3 7/8" | 5/32" | Round | 4 | Alvord-Polk Tool | 2919A51 | 000000 | 28225A51 | 000000 | ||
| No. 5 | 0.221" | 0.141" | 0.188" | 4 1/8" | 3/16" | Round | 4 | Alvord-Polk Tool | 2919A52 | 00000 | 28225A52 | 00000 | ||
| No. 6 | 0.244" | 0.154" | 0.219" | 4 5/8" | 7/32" | Round | 4 | Alvord-Polk Tool | 2919A53 | 00000 | 28225A53 | 00000 | ||
| No. 8 | 0.288" | 0.18" | 0.250" | 5" | 1/4" | Round | 4 | Alvord-Polk Tool | 2919A54 | 00000 | 28225A54 | 00000 | ||
| No. 10 | 0.330" | 0.206" | 0.281" | 5 1/4" | 9/32" | Round | 4 | Alvord-Polk Tool | 2919A55 | 00000 | 28225A55 | 00000 | ||
| 1/4" | 0.398" | 0.266" | 0.313" | 5 5/8" | 5/16" | Round | 4 | Alvord-Polk Tool | 2919A56 | 00000 | 28225A56 | 00000 | ||
| 5/16" | 0.491" | 0.328" | 0.375" | 6 1/8" | 3/8" | Round | 4 | Alvord-Polk Tool | 2919A57 | 00000 | 28225A57 | 00000 | ||
| 3/8" | 0.588" | 0.391" | 0.500" | 6 1/2" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A58 | 00000 | 28225A58 | 00000 | ||
| 7/16" | 0.679" | 0.453" | 0.500" | 7" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A59 | 00000 | 28225A59 | 000000 | ||
| 1/2" | 0.773" | 0.515" | 0.500" | 7 1/2" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A61 | 00000 | 28225A61 | 000000 | ||
| 5/8" | 0.961" | 0.641" | 0.625" | 7 5/8" | 5/8" | Round | 4 | Alvord-Polk Tool | 2919A62 | 000000 | 28225A62 | 000000 | ||
| 3/4" | 1.149" | 0.766" | 0.750" | 7 3/4" | 3/4" | Round | 4 | Alvord-Polk Tool | 2919A63 | 000000 | 28225A63 | 000000 | ||
| 7/8" | 1.338" | 0.891" | 0.875" | 8 1/8" | 7/8" | Round | 4 | Alvord-Polk Tool | 2919A67 | 000000 | ——— | 0 | ||
| 1" | 1.526" | 1.016" | 1.000" | 8 1/2" | 1" | Round | 4 | Alvord-Polk Tool | 2919A65 | 000000 | ——— | 0 | ||
1/32" Oversize | ||||||||||||||
| No. 4 | 0.221" | 0.143" | 0.156" | 3 7/8" | 5/32" | Round | 4 | Alvord-Polk Tool | 2919A71 | 00000 | 28225A71 | 00000 | ||
| No. 5 | 0.236" | 0.156" | 0.188" | 4 1/8" | 3/16" | Round | 4 | Alvord-Polk Tool | 2919A72 | 00000 | 28225A72 | 00000 | ||
| No. 6 | 0.259" | 0.169" | 0.219" | 4 5/8" | 7/32" | Round | 4 | Alvord-Polk Tool | 2919A73 | 00000 | 28225A73 | 00000 | ||
| No. 8 | 0.303" | 0.195" | 0.250" | 5" | 1/4" | Round | 4 | Alvord-Polk Tool | 2919A74 | 00000 | 28225A74 | 00000 | ||
| No. 10 | 0.345" | 0.221" | 0.281" | 5 1/4" | 9/32" | Round | 4 | Alvord-Polk Tool | 2919A75 | 00000 | 28225A75 | 00000 | ||
| 1/4" | 0.413" | 0.281" | 0.313" | 5 5/8" | 5/16" | Round | 4 | Alvord-Polk Tool | 2919A76 | 00000 | 28225A76 | 00000 | ||
| 5/16" | 0.506" | 0.344" | 0.375" | 6 1/8" | 3/8" | Round | 4 | Alvord-Polk Tool | 2919A77 | 00000 | 28225A77 | 00000 | ||
| 3/8" | 0.603" | 0.406" | 0.500" | 6 1/2" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A78 | 00000 | 28225A78 | 00000 | ||
| 7/16" | 0.694" | 0.469" | 0.500" | 7" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A79 | 00000 | 28225A79 | 000000 | ||
| 1/2" | 0.788" | 0.531" | 0.500" | 7 1/2" | 1/2" | Round | 4 | Alvord-Polk Tool | 2919A81 | 00000 | 28225A81 | 000000 | ||
| 5/8" | 0.976" | 0.656" | 0.625" | 7 5/8" | 5/8" | Round | 4 | Alvord-Polk Tool | 2919A82 | 000000 | 28225A82 | 000000 | ||
| 3/4" | 1.164" | 0.781" | 0.750" | 7 3/4" | 3/4" | Round | 4 | Alvord-Polk Tool | 2919A83 | 000000 | 28225A83 | 000000 | ||
| 7/8" | 1.353" | 0.906" | 0.875" | 8 1/8" | 7/8" | Round | 4 | Alvord-Polk Tool | 2919A87 | 000000 | ——— | 0 | ||
| 1" | 1.541" | 1.031" | 1.000" | 8 1/2" | 1" | Round | 4 | Alvord-Polk Tool | 2919A85 | 000000 | ——— | 0 | ||
0.5 mm Oversize | ||||||||||||||
| M3 | 6.0 mm | 3.5 mm | 0.219" | 4 1/2" | 3/16" | Round | 4 | Alvord-Polk Tool | 2740A11 | 00000 | ——— | 0 | ||
| M4 | 7.5 mm | 4.5 mm | 0.250" | 5" | 1/4" | Round | 4 | Alvord-Polk Tool | 2740A12 | 00000 | ——— | 0 | ||
| M5 | 9.0 mm | 5.5 mm | 0.281" | 5 5/8" | 5/16" | Round | 4 | Alvord-Polk Tool | 2740A13 | 00000 | ——— | 0 | ||
| M6 | 10.5 mm | 6.5 mm | 0.313" | 5 5/8" | 5/16" | Round | 4 | Alvord-Polk Tool | 2740A14 | 00000 | ——— | 0 | ||
| M8 | 13.5 mm | 8.5 mm | 0.375" | 6 1/2" | 1/2" | Round | 4 | Alvord-Polk Tool | 2740A15 | 00000 | ——— | 0 | ||
| M10 | 16.5 mm | 10.5 mm | 0.500" | 7" | 1/2" | Round | 4 | Alvord-Polk Tool | 2740A16 | 00000 | ——— | 0 | ||
| M12 | 18.5 mm | 12.5 mm | 0.500" | 7 1/8" | 1/2" | Round | 4 | Alvord-Polk Tool | 2740A17 | 00000 | ——— | 0 | ||
| M14 | 21.5 mm | 14.5 mm | 0.563" | 7 1/2" | 5/8" | Round | 4 | Alvord-Polk Tool | 2740A18 | 000000 | ——— | 0 | ||
| M16 | 24.5 mm | 16.5 mm | 0.625" | 7 5/8" | 5/8" | Round | 4 | Alvord-Polk Tool | 2740A22 | 000000 | ——— | 0 | ||
| M20 | 30.5 mm | 20.5 mm | 0.750" | 8 1/8" | 7/8" | Round | 4 | Alvord-Polk Tool | 2740A26 | 000000 | ——— | 0 | ||
Carbide-Tipped Steel
Pilot | Shank | Uncoated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body Dia. | Dia. | Lg. | Overall Lg. | Dia. | Type | No. of Flutes | Mfr. | Each | |||
1/64" Oversize | ||||||||||||
| 1/4" | 0.398" | 17/64" | 0.313" | 5 5/8" | 5/16" | Round | 3 | Rock River Tool | 3218A113 | 0000000 | ||
| 5/16" | 0.491" | 21/64" | 0.375" | 6 1/8" | 3/8" | Round | 3 | Rock River Tool | 3218A123 | 000000 | ||
| 3/8" | 0.588" | 25/64" | 0.500" | 6 1/2" | 1/2" | Round | 3 | Rock River Tool | 3218A133 | 000000 | ||
| 7/16" | 0.679" | 29/64" | 0.500" | 7" | 1/2" | Round | 3 | Rock River Tool | 3218A143 | 000000 | ||
| 1/2" | 0.773" | 33/64" | 0.500" | 7 1/2" | 1/2" | Round | 3 | Rock River Tool | 3218A153 | 000000 | ||
| 5/8" | 0.961" | 41/64" | 0.625" | 7 5/8" | 5/8" | Round | 3 | Rock River Tool | 3218A163 | 000000 | ||
| 3/4" | 1.149" | 49/64" | 0.750" | 7 3/4" | 3/4" | Round | 3 | Rock River Tool | 3218A173 | 000000 | ||
| 7/8" | 1.338" | 57/64" | 0.875" | 8 1/8" | 7/8" | Round | 4 | Rock River Tool | 3218A183 | 000000 | ||
| 1" | 1.526" | 1 1/64" | 1.000" | 8 1/2" | 1" | Round | 4 | Rock River Tool | 3218A193 | 000000 | ||
1/32" Oversize | ||||||||||||
| 1/4" | 0.413" | 9/32" | 0.313" | 5 5/8" | 5/16" | Round | 3 | Rock River Tool | 3218A112 | 000000 | ||
| 5/16" | 0.506" | 11/32" | 0.375" | 6 1/8" | 3/8" | Round | 3 | Rock River Tool | 3218A122 | 000000 | ||
| 3/8" | 0.603" | 13/32" | 0.500" | 6 1/2" | 1/2" | Round | 3 | Rock River Tool | 3218A132 | 000000 | ||
| 7/16" | 0.694" | 15/32" | 0.500" | 7" | 1/2" | Round | 3 | Rock River Tool | 3218A142 | 000000 | ||
| 1/2" | 0.788" | 17/32" | 0.500" | 7 1/2" | 1/2" | Round | 3 | Rock River Tool | 3218A152 | 000000 | ||
| 5/8" | 0.976" | 21/32" | 0.625" | 7 5/8" | 5/8" | Round | 3 | Rock River Tool | 3218A162 | 000000 | ||
| 3/4" | 1.164" | 25/32" | 0.750" | 7 3/4" | 3/4" | Round | 3 | Rock River Tool | 3218A172 | 000000 | ||
| 7/8" | 1.353" | 29/32" | 0.875" | 8 1/8" | 7/8" | Round | 4 | Rock River Tool | 3218A182 | 000000 | ||
| 1" | 1.541" | 1 1/32" | 1.000" | 8 1/2" | 1" | Round | 4 | Rock River Tool | 3218A192 | 000000 | ||
Port Counterbores
Carbide-Tipped Steel
Shank | Uncoated | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Thread Size | Series No. | Overall Lg. | Dia. | Lg. | Type | No. of Flutes | Pilot Lg. | Mil. Spec. | Mfr. | Each | |||
SAE J1926/1, SAE J514 | |||||||||||||
| 3/8"-24 | SAE-3SS | 3 3/4" | 0.5000" | 2" | Round | 4 | 0.473" | MS16142 | TOSCO | 2144A21 | 0000000 | ||
| 7/16"-20 | SAE-4SS | 3 3/4" | 0.5000" | 2" | Round | 4 | 0.552" | MS16142 | TOSCO | 2144A22 | 000000 | ||
| 1/2"-20 | SAE-5SS | 4" | 0.7500" | 2 1/32" | Round | 4 | 0.552" | MS16142 | TOSCO | 2144A23 | 000000 | ||
| 9/16"-18 | SAE-6SS | 4" | 0.7500" | 2 1/32" | Round | 4 | 0.614" | MS16142 | TOSCO | 2144A24 | 000000 | ||
| 3/4"-16 | SAE-8SS | 4" | 0.7500" | 2 1/32" | Round | 4 | 0.696" | MS16142 | TOSCO | 2144A25 | 000000 | ||
SAE AS5202 | |||||||||||||
| 3/8"-24 | NB-3 | 5 1/16" | 0.4995" | 2" | Round | 4 | 0.598" | MS33649 | TOSCO | 2144A11 | 000000 | ||
| 7/16"-20 | NB-4 | 5 5/32" | 0.4995" | 2" | Round | 4 | 0.671" | MS33649 | TOSCO | 2144A12 | 000000 | ||
| 1/2"-20 | NB-5 | 5 5/32" | 0.4995" | 2" | Round | 4 | 0.671" | MS33649 | TOSCO | 2144A13 | 000000 | ||
| 9/16"-18 | NB-6 | 5 3/16" | 0.4995" | 2" | Round | 4 | 0.724" | MS33649 | TOSCO | 2144A14 | 000000 | ||
| 3/4"-16 | NB-8 | 5 5/16" | 0.4995" | 2" | Round | 4 | 0.849" | MS33649 | TOSCO | 2144A15 | 000000 | ||
Reverse Counterbores
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Counterbore Head |
Counterbores | Required Shanks | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Uncoated | |||||||||||
Body Dia. | Overall Lg. | No. of Flutes | Mfr. | Each | Shank Dia. | Overall Lg. | Each | ||||
| 5/16" | 1/2" | 4 | Craig Tools | 3323A21 | 000000 | 3/32" | 6" | 3309A31 | 00000 | ||
| 5/16" | 1/2" | 4 | Craig Tools | 3323A22 | 00000 | 1/8" | 6" | 3309A32 | 0000 | ||
| 5/16" | 1/2" | 4 | Craig Tools | 3323A23 | 00000 | 5/32" | 6" | 3309A33 | 0000 | ||
| 3/8" | 1/2" | 4 | Craig Tools | 3323A24 | 00000 | 1/8" | 6" | 3309A32 | 0000 | ||
| 3/8" | 1/2" | 4 | Craig Tools | 3323A25 | 00000 | 5/32" | 6" | 3309A33 | 0000 | ||
| 3/8" | 1/2" | 4 | Craig Tools | 3323A26 | 00000 | 3/16" | 6" | 3309A34 | 00000 | ||
| 1/2" | 1/2" | 4 | Craig Tools | 3323A27 | 00000 | 5/32" | 6" | 3309A33 | 0000 | ||
| 1/2" | 1/2" | 4 | Craig Tools | 3323A28 | 00000 | 3/16" | 6" | 3309A34 | 00000 | ||
| 1/2" | 1/2" | 4 | Craig Tools | 3323A29 | 00000 | 1/4" | 6" | 3309A35 | 00000 | ||
Built-in-Pilot Counterbore Sets
For Screw Size | Shank Type | No. of Flutes | No. of Pieces | Mfr. | Each | |||
|---|---|---|---|---|---|---|---|---|
Uncoated High-Speed Steel | ||||||||
| No. 4, No. 5, No. 6, No. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2" | Round | 4 | 10 | Alvord-Polk Tool | 2919A12 | 0000000 | ||
Changeable-Pilot Counterbore Sets
Body Dia. | Shank Type | No. of Pieces | Includes | Container Type | Mfr. | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Uncoated High-Speed Steel | |||||||||
| 1/4", 5/16", 3/8", 7/16", 1/2" | Round | 5 | 10 Pilots | Wood Case | F&D Tool | 2817A71 | 0000000 | ||
Oversized Counterbore Sets
For Screw Size | Oversize Amount | Shank Type | No. of Flutes | No. of Pieces | Mfr. | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Uncoated High-Speed Steel | |||||||||
| No. 4, No. 5, No. 6, No. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2" | 1/64" | Round | 4 | 10 | Alvord-Polk Tool | 2919A14 | 0000000 | ||
| No. 4, No. 5, No. 6, No. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2" | 1/32" | Round | 4 | 10 | Alvord-Polk Tool | 2919A16 | 000000 | ||
| M3, M4, M5, M6, M8, M10, M12, M14 | 0.5 mm | Round | 4 | 8 | Alvord-Polk Tool | 2740A19 | 000000 | ||
Carbide-Insert Port Counterbore Kits
Counterbores | Replacement Pilot Inserts | Replacement Form Inserts | Replacement Pilot Insert Screws | Replacement Thread Mills | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shank | ||||||||||||||||||||||
For Thread Size | For Port Dash Size | Overall Lg. | Dia. | Lg. | No. of Flutes | Mil. Spec. | Includes | Mfr. | Each | Pkg. Qty. | Pkg. | Pkg. Qty. | Pkg. | Each | Each | |||||||
SAE J1926/1 | ||||||||||||||||||||||
| 7/16"-20 | 04 | 3 13/32" | 5/8" | 1 7/8" | 2 | MS16142 | One Insert Holder (Steel) Two Pilot Inserts (High-Speed Steel) Two Form Inserts (Carbide) One 7/16"-20 Thread Mill for Internal Threads (Carbide) One IP7 Torx Plus Key One IP8 Torx Plus Key | Allied Machine & Engineering | 9816N11 | 0000000 | 2 | 9816N17 | 0000000 | 2 | 9816N24 | 0000000 | 9816N31 | 00000 | 5277N26 | 0000000 | ||
| 9/16"-18 | 06 | 3 13/16" | 3/4" | 1 31/32" | 2 | MS16142 | One Insert Holder (Steel) Two Pilot Inserts (High-Speed Steel) Two Form Inserts (Carbide) One 9/16"-18 Thread Mill for Internal Threads (Carbide) One IP8 Torx Plus Key | Allied Machine & Engineering | 9816N12 | 000000 | 2 | 9816N18 | 000000 | 2 | 9816N25 | 000000 | 9816N32 | 0000 | 5277N28 | 000000 | ||
| 3/4"-16 | 08 | 3 15/16" | 3/4" | 1 31/32" | 2 | MS16142 | One Insert Holder (Steel) Two Pilot Inserts (High-Speed Steel) Two Form Inserts (Carbide) One 3/4"-16 Thread Mill for Internal Threads (Carbide) One IP8 Torx Plus Key | Allied Machine & Engineering | 9816N13 | 000000 | 2 | 9816N19 | 000000 | 2 | 9816N26 | 000000 | 9816N33 | 0000 | 5277N29 | 000000 | ||
SAE AS5202 | ||||||||||||||||||||||
| 7/16"-20 | 04 | 3 17/32" | 5/8" | 1 7/8" | 2 | MS33649 | One Insert Holder (Steel) Two Pilot Inserts (High-Speed Steel) Two Form Inserts (Carbide) One 7/16"-20 Thread Mill for Internal Threads (Carbide) One IP7 Torx Plus Key One IP8 Torx Plus Key | Allied Machine & Engineering | 9816N14 | 000000 | 2 | 9816N21 | 000000 | 2 | 9816N27 | 000000 | 9816N31 | 0000 | 5277N26 | 000000 | ||
| 9/16"-18 | 06 | 3 29/32" | 3/4" | 1 31/32" | 2 | MS33649 | One Insert Holder (Steel) Two Pilot Inserts (High-Speed Steel) Two Form Inserts (Carbide) One 9/16"-18 Thread Mill for Internal Threads (Carbide) One IP7 Torx Plus Key One IP8 Torx Plus Key | Allied Machine & Engineering | 9816N15 | 000000 | 2 | 9816N22 | 000000 | 2 | 9816N28 | 000000 | 9816N34 | 0000 | 5277N28 | 000000 | ||
| 3/4"-16 | 08 | 4 3/32" | 3/4" | 1 31/32" | 2 | MS33649 | One Insert Holder (Steel) Two Pilot Inserts (High-Speed Steel) Two Form Inserts (Carbide) One 3/4"-16 Thread Mill for Internal Threads (Carbide) One IP8 Torx Plus Key | Allied Machine & Engineering | 9816N16 | 000000 | 2 | 9816N23 | 000000 | 2 | 9816N29 | 000000 | 9816N33 | 0000 | 5277N29 | 000000 | ||















































