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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Pipe and Conduit Thread Taps for Shallow Holes

Also known as short-projection taps, these have fewer tapered threads at the tip than standard pipe taps, so you don't have to drive them as deep to produce full threads. They're made of 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 bottoming chamfer with 1-2 chamfered cutting threads, so they can thread close to the bottom of closed-end holes.
For technical drawings and 3-D models, click on a part number.
Drill Bit | Bottoming Chamfer | ||||||||
---|---|---|---|---|---|---|---|---|---|
Pipe Size | Thread Type | Threads Per Inch | Thread Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Each | |
Uncoated High-Speed Steel | |||||||||
1/16 | PTF-SAE | 27 | 11/16" | 2 1/8" | C | 0.242" | 4 | 0000000 | 000000 |
1/8 | PTF-SAE | 27 | 3/4" | 2 1/8" | Q | 0.332" | 4 | 0000000 | 00000 |
1/4 | PTF-SAE | 18 | 1 1/16" | 2 7/16" | 7/16" | 0.4375" | 4 | 0000000 | 00000 |
3/8 | PTF-SAE | 18 | 1 1/16" | 2 9/16" | 9/16" | 0.5625" | 4 | 0000000 | 00000 |
1/2 | PTF-SAE | 14 | 1 5/8" | 3 1/8" | 45/64" | 0.7031" | 4 | 0000000 | 00000 |
3/4 | PTF-SAE | 14 | 1 3/8" | 3 1/4" | 29/32" | 0.9063" | 5 | 0000000 | 00000 |
1 | PTF-SAE | 11 1/2 | 1 3/4" | 3 3/4" | 1 9/64" | 1.1406" | 5 | 0000000 | 000000 |
1 1/4 | PTF-SAE | 11 1/2 | 1 3/4" | 4" | 1 31/64" | 1.4844" | 5 | 0000000 | 000000 |
1 1/2 | PTF-SAE | 11 1/2 | 1 3/4" | 4 1/4" | 1 23/32" | 1.7188" | 7 | 0000000 | 000000 |
2 | PTF-SAE | 11 1/2 | 1 3/4" | 4 1/4" | 2 3/16" | 2.1875" | 7 | 0000000 | 000000 |
Titanium Nitride (TiN) Coated High-Speed Steel | |||||||||
1/16 | PTF-SAE | 27 | 11/16" | 2 1/8" | C | 0.242" | 4 | 0000000 | 00000 |
1/8 | PTF-SAE | 27 | 3/4" | 2 1/8" | Q | 0.332" | 4 | 0000000 | 00000 |
1/4 | PTF-SAE | 18 | 1 1/16" | 2 7/16" | 7/16" | 0.4375" | 4 | 0000000 | 00000 |
3/8 | PTF-SAE | 18 | 1 1/16" | 2 9/16" | 9/16" | 0.5625" | 4 | 0000000 | 00000 |
1/2 | PTF-SAE | 14 | 1 5/8" | 3 1/8" | 45/64" | 0.7031" | 4 | 0000000 | 00000 |
3/4 | PTF-SAE | 14 | 1 3/8" | 3 1/4" | 29/32" | 0.9063" | 5 | 0000000 | 000000 |
1 | PTF-SAE | 11 1/2 | 1 3/4" | 3 3/4" | 1 9/64" | 1.1406" | 5 | 0000000 | 000000 |
1 1/4 | PTF-SAE | 11 1/2 | 1 3/4" | 4" | 1 31/64" | 1.4844" | 5 | 0000000 | 000000 |
1 1/2 | PTF-SAE | 11 1/2 | 1 3/4" | 4 1/4" | 1 23/32" | 1.7188" | 7 | 0000000 | 000000 |
2 | PTF-SAE | 11 1/2 | 1 3/4" | 4 1/4" | 2 3/16" | 2.1875" | 7 | 0000000 | 000000 |