Thread Size Thread Size |
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Flute Type Flute Type |
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 | Straight |
 | Spiral Point |
Application Application |
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Maximum Tapping Depth Maximum Tapping Depth |
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Material Material |
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Drill Bit Size Drill Bit Size |
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Thread Length Thread Length |
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Shank Diameter Shank Diameter |
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Drill Bit Decimal Size Equivalent Drill Bit DecimalSize Equivalent |
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Finish Finish |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Long-Reach General Purpose Taps
Bottoming Chamfer
Plug Chamfer
Taper Chamfer
Use the extra-long shank to thread deep and hard-to-reach holes. These taps are made of uncoated high-speed steel and are for use on most metal and plastic. With a square shank, they're compatible with tap wrenches and tap holders for drill presses and milling machines. All have a chamfer with chamfered cutting threads, so they're suitable for start-to-finish tapping. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.
For technical drawings and 3-D models, click on a part number.
Inch
Thread | Drill Bit | Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Thread Type | Pitch Dia. Limit | Dia. | Dia. Tolerance | Each | |
Bottoming Chamfer | |||||||||||
Uncoated High-Speed Steel | |||||||||||
| 6-32 | 11/16" | 6" | 7/64" | 0.1094" | 3 | UNC | H3 | 0.141" | -0.0313" to 0.0313" | 00000000 | 000000 |
| 8-32 | 3/4" | 6" | No. 29 | 0.136" | 4 | UNC | H3 | 0.168" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 10-24 | 7/8" | 6" | No. 24 | 0.152" | 4 | UNC | H3 | 0.194" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 10-32 | 7/8" | 6" | No. 20 | 0.161" | 4 | UNF | H3 | 0.194" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 1/4"-20 | 1" | 6" | No. 6 | 0.24" | 4 | UNC | H3 | 0.255" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 1/4"-28 | 1" | 6" | 7/32" | 0.2188" | 4 | UNF | H3 | 0.255" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 5/16"-18 | 1 1/8" | 6" | G | 0.261" | 4 | UNC | H3 | 0.318" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 5/16"-18 | 1 1/8" | 8" | F | 0.257" | 4 | UNC | H3 | 0.318" | -0.031" to 0.031" | 00000000 | 00000 |
| 5/16"-24 | 1 1/8" | 6" | 7 mm | 0.2756" | 4 | UNF | H3 | 0.318" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 3/8"-16 | 1 1/4" | 6" | 8.1 mm | 0.3188" | 4 | UNC | H3 | 0.381" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 3/8"-16 | 1 1/4" | 8" | 5/16" | 0.3125" | 4 | UNC | H3 | 0.381" | -0.031" to 0.031" | 00000000 | 00000 |
| 3/8"-24 | 1 1/4" | 6" | 8.6 mm | 0.3385" | 4 | UNF | H3 | 0.381" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 7/16"-14 | 1 7/16" | 6" | 9.5 mm | 0.374" | 4 | UNC | H3 | 0.323" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 7/16"-20 | 1 7/16" | 6" | 25/64" | 0.3906" | 4 | UNF | H3 | 0.323" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 1/2"-13 | 1 21/32" | 6" | 11 mm | 0.4331" | 4 | UNC | H3 | 0.367" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 9/16"-12 | 1 21/32" | 6" | 12.2 mm | 0.4803" | 4 | UNC | H3 | 0.429" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 9/16"-18 | 1 21/32" | 6" | 13 mm | 0.5118" | 4 | UNF | H3 | 0.429" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 5/8"-18 | 1 13/32" | 6" | 37/64" | 0.5781" | 4 | UNF | H3 | 0.48" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 3/4"-10 | 2" | 6" | 21/32" | 0.6563" | 4 | UNC | H3 | 0.59" | -0.0313" to 0.0313" | 00000000 | 00000 |
Plug Chamfer | |||||||||||
Uncoated High-Speed Steel | |||||||||||
| 6-32 | 11/16" | 6" | 36 ga. | 0.1065" | 3 | UNC | H3 | 0.141" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 8-32 | 3/4" | 6" | 29 ga. | 0.136" | 4 | UNC | H3 | 0.168" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 10-24 | 7/8" | 6" | 25 ga. | 0.1495" | 4 | UNC | H3 | 0.194" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 10-32 | 7/8" | 6" | 21 ga. | 0.159" | 4 | UNF | H3 | 0.194" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 1/4"-20 | 1" | 6" | 7 ga. | 0.201" | 4 | UNC | H3 | 0.255" | -0.031" to 0.031" | 0000000 | 00000 |
| 1/4"-20 | 1 5/8" | 5" | 7 ga. | 0.201" | 4 | UNC | H3 | 0.185" | -0.003" to 0" | 0000000 | 00000 |
| 1/4"-28 | 1" | 6" | 3 ga. | 0.213" | 4 | UNF | H3 | 0.255" | -0.031" to 0.031" | 0000000 | 00000 |
| 1/4"-28 | 1 1/4" | 5" | 7/32" | 0.2188" | 4 | UNF | H3 | 0.185" | -0.003" to 0" | 00000000 | 00000 |
| 5/16"-18 | 1 1/8" | 6" | F | 0.257" | 4 | UNC | H3 | 0.318" | -0.031" to 0.031" | 0000000 | 00000 |
| 5/16"-18 | 1 1/8" | 8" | F | 0.257" | 4 | UNC | H3 | 0.318" | -0.031" to 0.031" | 00000000 | 00000 |
| 5/16"-18 | 1 13/16" | 5 1/2" | F | 0.257" | 4 | UNC | H3 | 0.24" | -0.003" to 0" | 0000000 | 00000 |
| 5/16"-24 | 1 1/8" | 6" | I | 0.272" | 4 | UNF | H3 | 0.318" | -0.031" to 0.031" | 0000000 | 00000 |
| 3/8"-16 | 1 1/4" | 6" | 5/16" | 0.3125" | 4 | UNC | H3 | 0.381" | -0.031" to 0.031" | 0000000 | 00000 |
| 3/8"-16 | 1 1/4" | 8" | 5/16" | 0.3125" | 4 | UNC | H3 | 0.381" | -0.031" to 0.031" | 00000000 | 00000 |
| 3/8"-16 | 2" | 6" | 5/16" | 0.3125" | 4 | UNC | H3 | 0.294" | -0.003" to 0" | 0000000 | 00000 |
| 3/8"-24 | 1 1/4" | 6" | Q | 0.332" | 4 | UNF | H3 | 0.381" | -0.031" to 0.031" | 0000000 | 00000 |
| 7/16"-14 | 1 7/16" | 6" | U | 0.368" | 4 | UNC | H3 | 0.323" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 7/16"-20 | 1 7/16" | 6" | 25/64" | 0.3906" | 4 | UNF | H3 | 0.323" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 1/2"-13 | 1 21/32" | 6" | 27/64" | 0.4219" | 4 | UNC | H3 | 0.367" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 1/2"-13 | 2 1/2" | 7" | 27/64" | 0.4219" | 4 | UNC | H3 | 0.4" | -0.003" to 0" | 0000000 | 000000 |
| 1/2"-20 | 1 21/32" | 6" | 29/64" | 0.4531" | 4 | UNF | H3 | 0.367" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 9/16"-12 | 1 21/32" | 6" | 15/32" | 0.4688" | 4 | UNC | H3 | 0.429" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 9/16"-18 | 1 21/32" | 6" | 13 mm | 0.5118" | 4 | UNF | H3 | 0.429" | -0.0313" to 0.0313" | 00000000 | 00000 |
| 5/8"-11 | 1 13/16" | 6" | 17/32" | 0.5313" | 4 | UNC | H3 | 0.48" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 5/8"-11 | 3" | 8" | 17/32" | 0.5313" | 4 | UNC | H3 | 0.503" | -0.003" to 0" | 0000000 | 000000 |
| 5/8"-18 | 1 13/16" | 6" | 37/64" | 0.5781" | 4 | UNF | H3 | 0.48" | -0.0313" to 0.0313" | 0000000 | 00000 |
| 3/4"-10 | 3 1/4" | 9" | 21/32" | 0.6563" | 4 | UNC | H3 | 0.616" | -0.003" to 0" | 0000000 | 000000 |
| 3/4"-16 | 2 1/2" | 9" | 11/16" | 0.6875" | 4 | UNF | H3 | 0.616" | -0.003" to 0" | 00000000 | 000000 |
| 7/8"-9 | 3 5/8" | 10" | 49/64" | 0.7656" | 4 | UNC | H4 | 0.727" | -0.003" to 0" | 00000000 | 000000 |
| 7/8"-14 | 2 3/4" | 10" | 13/16" | 0.8125" | 4 | UNF | H4 | 0.727" | -0.003" to 0" | 00000000 | 000000 |
| 1"-8 | 4" | 11" | 7/8" | 0.875" | 4 | UNC | H4 | 0.834" | -0.003" to 0" | 0000000 | 000000 |
| 1"-14 | 3" | 11" | 23.5 mm | 0.9274" | 4 | UNF | H4 | 0.834" | -0.003" to 0" | 00000000 | 000000 |
Taper Chamfer | |||||||||||
Uncoated High-Speed Steel | |||||||||||
| 6-32 | 11/16" | 6" | 7/64" | 0.1094" | 3 | UNC | H3 | 0.141" | -0.0015" to 0" | 00000000 | 00000 |
| 8-32 | 3/4" | 6" | No. 29 | 0.136" | 4 | UNC | H3 | 0.168" | -0.0015" to 0" | 00000000 | 00000 |
| 10-24 | 7/8" | 6" | No. 24 | 0.152" | 4 | UNC | H3 | 0.194" | -0.0015" to 0" | 00000000 | 00000 |
| 10-32 | 7/8" | 6" | No. 20 | 0.161" | 4 | UNF | H3 | 0.194" | -0.0015" to 0" | 00000000 | 00000 |
| 1/4"-20 | 1 5/8" | 5" | 7 ga. | 0.201" | 4 | UNC | H3 | 0.185" | -0.003" to 0" | 00000000 | 00000 |
| 1/4"-28 | 1" | 6" | 5.5 mm | 0.2164" | 4 | UNF | H3 | 0.255" | -0.0015" to 0" | 00000000 | 00000 |
| 1/4"-28 | 1 1/4" | 5" | 7/32" | 0.2188" | 4 | UNF | H3 | 0.185" | -0.003" to 0" | 00000000 | 00000 |
| 5/16"-18 | 1 13/16" | 5 1/2" | F | 0.257" | 4 | UNC | H3 | 0.24" | -0.003" to 0" | 00000000 | 00000 |
| 5/16"-24 | 1 1/8" | 6" | 7 mm | 0.2756" | 4 | UNF | H3 | 0.318" | -0.0015" to 0" | 00000000 | 00000 |
| 3/8"-16 | 2" | 6" | 5/16" | 0.3125" | 4 | UNC | H3 | 0.294" | -0.003" to 0" | 00000000 | 00000 |
| 3/8"-24 | 1 1/4" | 6" | 8.6 mm | 0.3385" | 4 | UNF | H3 | 0.381" | -0.0015" to 0" | 00000000 | 00000 |
| 1/2"-13 | 2 1/2" | 7" | 27/64" | 0.4219" | 4 | UNC | H3 | 0.4" | -0.003" to 0" | 00000000 | 000000 |
| 1/2"-20 | 1 7/8" | 7" | 29/64" | 0.4531" | 4 | UNF | H3 | 0.4" | -0.003" to 0" | 00000000 | 000000 |
| 9/16"-12 | 1 21/32" | 6" | 31/64" | 0.4844" | 4 | UNC | H3 | 0.429" | -0.0015" to 0" | 00000000 | 00000 |
| 9/16"-18 | 1 21/32" | 6" | 13 mm | 0.5118" | 4 | UNF | H3 | 0.429" | -0.0015" to 0" | 00000000 | 00000 |
| 5/8"-11 | 3" | 8" | 17/32" | 0.5313" | 4 | UNC | H3 | 0.503" | -0.003" to 0" | 00000000 | 000000 |
| 5/8"-18 | 2 1/4" | 8" | 9/16" | 0.5687" | 4 | UNF | H3 | 0.503" | -0.003" to 0" | 00000000 | 000000 |
| 3/4"-10 | 3 1/4" | 9" | 21/32" | 0.6563" | 4 | UNC | H3 | 0.616" | -0.003" to 0" | 00000000 | 000000 |
| 3/4"-16 | 2 1/2" | 9" | 11/16" | 0.6875" | 4 | UNF | H3 | 0.616" | -0.003" to 0" | 00000000 | 000000 |
| 7/8"-9 | 3 5/8" | 10" | 49/64" | 0.7656" | 4 | UNC | H4 | 0.727" | -0.003" to 0" | 00000000 | 000000 |
| 1"-8 | 4" | 11" | 7/8" | 0.875" | 4 | UNC | H4 | 0.834" | -0.003" to 0" | 00000000 | 000000 |
| 1"-14 | 3" | 11" | 23.5 mm | 0.9274" | 4 | UNF | H4 | 0.834" | -0.003" to 0" | 00000000 | 000000 |
Metric
Thread | Drill Bit | Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Thread Type | Pitch Dia. Limit | Dia. | Dia. Tolerance | Each | |
Bottoming Chamfer | ||||||||||||
Uncoated High-Speed Steel | ||||||||||||
| M3.5 | 0.6 | 11/16" | 6" | No. 32 | 0.116" | 3 | Metric | D4 | 0.141" | -0.0313" to 0.0313" | 00000000 | 000000 |
| M4 | 0.7 | 3/4" | 6" | 3.4 mm | 0.1338" | 4 | Metric | D4 | 0.168" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M5 | 0.8 | 7/8" | 6" | 4.3 mm | 0.1692" | 4 | Metric | D4 | 0.194" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M6 | 1 | 1" | 6" | 5.1 mm | 0.2007" | 4 | Metric | D5 | 0.255" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M8 | 1.25 | 1 1/8" | 6" | 6.9 mm | 0.2716" | 4 | Metric | D5 | 0.318" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M10 | 1.5 | 1 7/16" | 6" | R | 0.339" | 4 | Metric | D6 | 0.323" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M12 | 1.75 | 1 21/32" | 6" | Z | 0.413" | 4 | Metric | D6 | 0.367" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M16 | 2 | 1 13/32" | 6" | 14 mm | 0.5512" | 4 | Metric | D7 | 0.48" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M20 | 2.5 | 2" | 6" | 45/64" | 0.7031" | 4 | Metric | D7 | 0.652" | -0.0313" to 0.0313" | 00000000 | 00000 |
Plug Chamfer | ||||||||||||
Uncoated High-Speed Steel | ||||||||||||
| M3.5 | 0.6 | 11/16" | 6" | No. 32 | 0.116" | 3 | Metric | D4 | 0.141" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M4 | 0.7 | 3/4" | 6" | 3.4 mm | 0.1338" | 4 | Metric | D4 | 0.168" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M4.5 | 0.75 | 7/8" | 6" | 3.8 mm | 0.1535" | 4 | Metric | D4 | 0.194" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M5 | 0.8 | 7/8" | 6" | No. 18 | 0.1695" | 4 | Metric | D4 | 0.194" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M6 | 1 | 1" | 6" | No. 7 | 0.201" | 4 | Metric | D5 | 0.255" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M7 | 1 | 1 1/8" | 6" | 6.1 mm | 0.2401" | 4 | Metric | D5 | 0.318" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M8 | 1.25 | 1 1/8" | 6" | 6.9 mm | 0.2716" | 4 | Metric | D5 | 0.318" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M10 | 1.5 | 1 7/16" | 6" | R | 0.339" | 4 | Metric | D6 | 0.323" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M12 | 1 | 1 21/32" | 6" | 7/16" | 0.4375" | 4 | Metric | D6 | 0.367" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M12 | 1.75 | 1 21/32" | 6" | 13/32" | 0.4063" | 4 | Metric | D6 | 0.367" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M14 | 2 | 1 21/32" | 6" | 12.2 mm | 0.4803" | 4 | Metric | D7 | 0.429" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M16 | 2 | 1 13/32" | 6" | 14 mm | 0.5512" | 4 | Metric | D7 | 0.48" | -0.0313" to 0.0313" | 00000000 | 00000 |
| M20 | 2.5 | 2" | 6" | 45/64" | 0.7031" | 4 | Metric | D7 | 0.652" | -0.0313" to 0.0313" | 00000000 | 00000 |
Taper Chamfer | ||||||||||||
Uncoated High-Speed Steel | ||||||||||||
| M5 | 0.8 | 7/8" | 6" | 4.3 mm | 0.1692" | 4 | Metric | D4 | 0.194" | -0.0015" to 0" | 00000000 | 00000 |
| M6 | 1 | 1" | 6" | 5.1 mm | 0.2007" | 4 | Metric | D5 | 0.255" | -0.0015" to 0" | 00000000 | 00000 |
| M7 | 1 | 1 1/8" | 6" | 6.1 mm | 0.2401" | 4 | Metric | D5 | 0.318" | -0.0015" to 0" | 00000000 | 00000 |
| M8 | 1.25 | 1 1/8" | 6" | 6.9 mm | 0.2716" | 4 | Metric | D5 | 0.318" | -0.0015" to 0" | 00000000 | 00000 |
| M10 | 1.5 | 1 7/16" | 6" | R | 0.339" | 4 | Metric | D6 | 0.323" | -0.0015" to 0" | 00000000 | 00000 |
| M12 | 1.75 | 1 21/32" | 6" | Z | 0.413" | 4 | Metric | D6 | 0.367" | -0.0015" to 0" | 00000000 | 00000 |
Long-Reach Chip-Clearing Taps for Through Holes
Clear chips while tapping deep and hard-to-reach holes. These taps have an extra-long shank for extended reach. Also known as gun taps, their spiral-point flutes push chips ahead of the tap and out of through holes. They don't need to be reversed to prevent buildup, so they produce threads more efficiently than standard taps and are suitable for production work. Their square shank is compatible with tap wrenches and tap holders for drill presses and milling machines. All have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping.
Uncoated high-speed steel taps are for use on most metal and plastic.
Black-oxide cobalt steel taps have high cutting strength and a long life when used on metals such as steel, stainless steel, and cast iron.
For technical drawings and 3-D models, click on a part number.
Inch
Thread | Drill Bit | Plug Chamfer | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Thread Type | Pitch Dia. Limit | Shank Diameter | Each | |
Black Oxide Cobalt Steel | ||||||||||
| 2-56 | 7/16" | 6" | 51 ga. | 0.067" | 2 | UNC | H2 | 0.141" | 0000000 | 0000000 |
| 4-40 | 9/16" | 6" | 43 ga. | 0.089" | 2 | UNC | H2 | 0.141" | 0000000 | 00000 |
| 6-32 | 3/8" | 6" | 36 ga. | 0.1065" | 2 | UNC | H3 | 0.168" | 0000000 | 00000 |
| 8-32 | 3/8" | 6" | 29 ga. | 0.136" | 2 | UNC | H3 | 0.168" | 0000000 | 00000 |
| 10-24 | 1/2" | 6" | 25 ga. | 0.1495" | 2 | UNC | H3 | 0.194" | 0000000 | 00000 |
| 10-32 | 1/2" | 6" | 21 ga. | 0.159" | 2 | UNF | H3 | 0.194" | 0000000 | 00000 |
| 1/4"-20 | 5/8" | 6" | 7 ga. | 0.201" | 3 | UNC | H3 | 0.255" | 0000000 | 00000 |
| 1/4"-28 | 5/8" | 6" | 3 ga. | 0.213" | 3 | UNF | H3 | 0.255" | 0000000 | 00000 |
| 5/16"-18 | 11/16" | 6" | F | 0.257" | 3 | UNC | H3 | 0.318" | 0000000 | 00000 |
| 5/16"-24 | 11/16" | 6" | I | 0.272" | 3 | UNF | H3 | 0.318" | 0000000 | 00000 |
| 3/8"-16 | 3/4" | 6" | 5/16" | 0.3125" | 3 | UNC | H3 | 0.381" | 0000000 | 00000 |
| 3/8"-24 | 3/4" | 6" | Q | 0.332" | 3 | UNF | H3 | 0.381" | 0000000 | 00000 |
| 7/16"-14 | 7/8" | 6" | U | 0.368" | 3 | UNC | H3 | 0.323" | 0000000 | 00000 |
| 7/16"-20 | 7/8" | 6" | 25/64" | 0.3906" | 3 | UNF | H3 | 0.323" | 0000000 | 00000 |
| 1/2"-13 | 15/16" | 6" | 27/64" | 0.4219" | 3 | UNC | H3 | 0.367" | 0000000 | 00000 |
| 1/2"-20 | 15/16" | 6" | 29/64" | 0.4531" | 3 | UNF | H3 | 0.367" | 0000000 | 00000 |
| 5/8"-11 | 1 3/32" | 6" | 17/32" | 0.5313" | 3 | UNC | H3 | 0.48" | 0000000 | 000000 |
Metric
Thread | Drill Bit | Plug Chamfer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Thread Pitch, mm | Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Thread Type | Pitch Dia. Limit | Shank Diameter | Each | |
Uncoated High-Speed Steel | |||||||||||
| M3.5 | 0.6 | 11/16" | 6" | No. 32 | 0.116" | 2 | Metric | D4 | 0.141" | 0000000 | 000000 |
| M4 | 0.7 | 3/4" | 6" | 3.3 mm | 0.1299" | 2 | Metric | D4 | 0.168" | 0000000 | 00000 |
| M5 | 0.8 | 7/8" | 6" | 4.3 mm | 0.1692" | 2 | Metric | D4 | 0.194" | 0000000 | 00000 |
| M6 | 1 | 1" | 6" | 5.1 mm | 0.2007" | 2 | Metric | D5 | 0.255" | 0000000 | 00000 |
| M8 | 1.25 | 1 1/8" | 6" | 6.9 mm | 0.2716" | 2 | Metric | D5 | 0.318" | 0000000 | 00000 |
| M10 | 1.5 | 1 1/4" | 6" | R | 0.339" | 3 | Metric | D6 | 0.381" | 0000000 | 00000 |
| M12 | 1.75 | 1 21/32" | 6" | 13/32" | 0.4063" | 3 | Metric | D6 | 0.367" | 0000000 | 00000 |
| M16 | 2 | 1 13/16" | 6" | 14 mm | 0.5512" | 3 | Metric | D7 | 0.48" | 0000000 | 00000 |