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About Masonry Drill Bits
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Inch Size Depth-Limiting Drill Bit Stop Collars
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
For Drill Bit | |||||||
|---|---|---|---|---|---|---|---|
| Size | Size Decimal Equivalent | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |
| 1/16" | 0.0625" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 00000 |
| 5/64" | 0.0781" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 3/32" | 0.0938" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 7/64" | 0.1094" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 1/8" | 0.1250" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 9/64" | 0.1406" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 5/32" | 0.1563" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 11/64" | 0.1719" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 3/16" | 0.1875" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 13/64" | 0.2031" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 7/32" | 0.2188" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 15/64" | 0.2344" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 1/4" | 0.2500" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 17/64" | 0.2656" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 9/32" | 0.2813" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 19/64" | 0.2969" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 5/16" | 0.3125" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 21/64" | 0.3281" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 11/32" | 0.3438" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 23/64" | 0.3594" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 3/8" | 0.3750" | 7/8" | 7/8" | 3/32" | Steel | 00000000 | 0000 |
| 25/64" | 0.3906" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 13/32" | 0.4063" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 27/64" | 0.4219" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 7/16" | 0.4375" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 29/64" | 0.4531" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 15/32" | 0.4688" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 31/64" | 0.4844" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 1/2" | 0.5000" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 33/64" | 0.5156" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 17/32" | 0.5313" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 9/16" | 0.5625" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 37/64" | 0.5781" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 19/32" | 0.5938" | 1" | 1" | 5/32" | Steel | 00000000 | 00000 |
| 5/8" | 0.6250" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 21/32" | 0.6563" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 11/16" | 0.6875" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 45/64" | 0.7031" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 23/32" | 0.7188" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 47/64" | 0.7344" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 3/4" | 0.7500" | 1 1/4" | 1 1/4" | 5/32" | Steel | 00000000 | 00000 |
| 51/64" | 0.7969" | 1 1/4" | 1 1/4" | 5/32" | Steel | 00000000 | 00000 |
| 13/16" | 0.8125" | 1 3/8" | 1 3/8" | 5/32" | Steel | 00000000 | 00000 |
| 7/8" | 0.8750" | 1 3/8" | 1 3/8" | 5/32" | Steel | 00000000 | 00000 |
| 15/16" | 0.9375" | 1 1/2" | 1 1/2" | 5/32" | Steel | 00000000 | 00000 |
| 31/32" | 0.9688" | 1 1/2" | 1 1/2" | 5/32" | Steel | 00000000 | 00000 |
| 1" | 1.0000" | 1 1/2" | 1 1/2" | 3/16" | Steel | 00000000 | 00000 |
Wire Gauge Size Depth-Limiting Drill Bit Stop Collars
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
For Drill Bit | |||||||
|---|---|---|---|---|---|---|---|
| Size | Size Decimal Equivalent | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |
| 52 | 0.0635" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 00000 |
| 51 | 0.0670" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 50 | 0.0700" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 49 | 0.0730" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 48 | 0.0760" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 47 | 0.0785" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 46 | 0.0810" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 45 | 0.0820" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 44 | 0.0860" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 43 | 0.0890" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 42 | 0.0935" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 41 | 0.0960" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 40 | 0.0980" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 39 | 0.0995" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 38 | 0.1015" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 37 | 0.1040" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 36 | 0.1065" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 35 | 0.1100" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 34 | 0.1110" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 33 | 0.1130" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 32 | 0.1160" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 31 | 0.1200" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 30 | 0.1285" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 29 | 0.1360" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 28 | 0.1405" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 27 | 0.1440" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 26 | 0.1470" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 25 | 0.1495" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 24 | 0.1520" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 23 | 0.1540" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 22 | 0.1570" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 21 | 0.1590" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 20 | 0.1610" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 19 | 0.1660" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 18 | 0.1695" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 17 | 0.1730" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 16 | 0.1770" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 15 | 0.1800" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 14 | 0.1820" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 13 | 0.1850" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 12 | 0.1890" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 11 | 0.1910" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 10 | 0.1935" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 9 | 0.1960" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 8 | 0.1990" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 7 | 0.2010" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 6 | 0.2040" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 5 | 0.2055" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 4 | 0.2090" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 3 | 0.2130" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 2 | 0.2210" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 1 | 0.2280" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
Metric Size Depth-Limiting Drill Bit Stop Collars
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
For Drill Bit | |||||||
|---|---|---|---|---|---|---|---|
| Size, mm | Size Decimal Equivalent | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |
| 2.0 | 0.0787" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 00000 |
| 3.0 | 0.1181" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 4.0 | 0.1575" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 5.0 | 0.1968" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 6.0 | 0.2362" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 7.0 | 0.2756" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 7.75 | 0.3051" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 8.0 | 0.3150" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 8.1 | 0.3189" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 8.5 | 0.3346" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 9.0 | 0.3543" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 9.5 | 0.3740" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 9.8 | 0.3858" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 10.0 | 0.3937" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 11.0 | 0.4331" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 12.0 | 0.4724" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 13.0 | 0.5118" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 15.0 | 0.5905" | 1" | 1" | 5/32" | Steel | 00000000 | 00000 |
| 20.0 | 0.7874" | 1 1/4" | 1 1/4" | 5/32" | Steel | 00000000 | 00000 |
Letter Size Depth-Limiting Drill Bit Stop Collars
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
For Drill Bit | |||||||
|---|---|---|---|---|---|---|---|
| Size | Size Decimal Equivalent | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |
| A | 0.2340" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 00000 |
| B | 0.2380" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| C | 0.2420" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| D | 0.2460" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| F | 0.2570" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| G | 0.2610" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| H | 0.2660" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| I | 0.2720" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| J | 0.2770" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| K | 0.2810" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| L | 0.2900" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| M | 0.2950" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| N | 0.3020" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| O | 0.3160" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| P | 0.3230" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| Q | 0.3320" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| R | 0.3390" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| S | 0.3480" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| T | 0.3580" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| U | 0.3680" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| V | 0.3770" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| W | 0.3860" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| X | 0.3970" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| Y | 0.4040" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| Z | 0.4130" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
Depth-Limiting Drill Bit Stop Collar Sets
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
Masonry Drill Bits for Anchor Installation
SDS-Plus Shank
A built-in stop ensures repeatable drilling depths for installing drop-in anchors. The SDS-Plus shank has two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. These bits cannot be used with SDS-Max-drive rotary hammers.
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Inch | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | |||||||||
| 1/4" | 0.25" | 4 7/8" | 13/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 000000 |
| 3/8" | 0.375" | 4 3/4" | 11/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 3/8" | 0.375" | 5 1/8" | 1 1/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 1/2" | 0.5" | 4 7/8" | 13/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 1/2" | 0.5" | 5 3/4" | 1 11/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 5/8" | 0.625" | 5 1/4" | 1 3/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 5/8" | 0.625" | 6 1/8" | 2 1/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |