General Purpose Taps
Cut threads into most metal and plastic. These high-speed steel taps are durable enough for small-scale tapping jobs, but they're not recommended for production use. For better chip flow, choose a tap with fewer flutes.
Drive square-shank taps with a tap wrench or use them in a tap holder for drill presses and milling machines. Uncoated taps are strong enough for most tapping jobs but have the shortest tool life. Plug-chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. However, they do not start threads as easily as taper chamfers. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.
Bottoming-chamfer taps cut into the workpiece with just 1-2 chamfered threads. This short chamfer lets them thread holes closer to the bottom than other taps, but they require more torque to start threads.
Sets include one taper-, one plug-, and one bottoming-chamfer tap.
For technical drawings and 3-D models, click on a part number.
Thread | Drill Bit | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Thread Type | Pitch Dia. Limit | Shank Type | Each | |
Plug Chamfer | ||||||||||
Uncoated High-Speed Steel | ||||||||||
1 1/16"-12 | 1 1/2" | 4" | 63/64" | 0.9844" | 4 | UNS | H4 | Square | 00000000 | 000000 |
1 1/8"-8 | 2 9/16" | 5 7/16" | 1" | 1" | 4 | UNS | H5 | Square | 0000000 | 00000 |
1 1/4"-8 | 2 9/16" | 5 3/4" | 1 1/8" | 1.125" | 4 | UNS | H5 | Square | 0000000 | 00000 |
1 5/16"-12 | 1 1/2" | 4" | 1 15/64" | 1.2344" | 6 | UNS | H4 | Square | 00000000 | 000000 |
1 3/8"-8 | 3" | 6 1/16" | 1 1/4" | 1.25" | 4 | UNS | H5 | Square | 0000000 | 000000 |
1 1/2"-8 | 3" | 6 3/8" | 1 3/8" | 1.375" | 4 | UNS | H5 | Square | 0000000 | 000000 |
1 5/8"-8 | 3 3/16" | 6 11/16" | 1 1/2" | 1.5" | 6 | UNS | H6 | Square | 0000000 | 000000 |
1 5/8"-12 | 2" | 5" | 1 9/16" | 1.5625" | 6 | UNS | H6 | Square | 00000000 | 000000 |
1 3/4"-8 | 3 3/16" | 7" | 1 5/8" | 1.625" | 6 | UNS | H6 | Square | 0000000 | 000000 |
1 3/4"-12 | 2" | 5" | 1 11/16" | 1.6875" | 6 | UNS | H6 | Square | 00000000 | 000000 |
2"-8 | 3 9/16" | 7 5/8" | 1 7/8" | 1.875" | 6 | UNS | H6 | Square | 0000000 | 000000 |
2"-12 | 2" | 5" | 1 15/16" | 1.9375" | 6 | UNS | H6 | Square | 00000000 | 000000 |
2 1/4"-8 | 3 9/16" | 8 1/4" | 2 1/8" | 2.125" | 6 | UNS | H6 | Square | 0000000 | 000000 |
2 1/4"-12 | 2" | 5 1/4" | 2 3/16" | 2.1875" | 6 | UNS | H6 | Square | 00000000 | 000000 |
2 1/2"-8 | 4" | 8 3/4" | 2 3/8" | 2.375" | 6 | UNS | H6 | Square | 0000000 | 000000 |
2 1/2"-12 | 2" | 5 1/4" | 2 7/16" | 2.4375" | 6 | UNS | H6 | Square | 00000000 | 000000 |
Bottoming Chamfer | ||||||||||
Uncoated High-Speed Steel | ||||||||||
1 1/16"-12 | 1 1/2" | 4" | 63/64" | 0.9844" | 4 | UNS | H4 | Square | 00000000 | 00000 |
1 1/8"-8 | 2 9/16" | 5 7/16" | 1" | 1" | 4 | UNS | H5 | Square | 0000000 | 00000 |
1 1/4"-8 | 2 9/16" | 5 3/4" | 1 1/8" | 1.125" | 4 | UNS | H5 | Square | 0000000 | 00000 |
1 5/16"-12 | 1 1/2" | 4" | 1 15/64" | 1.2344" | 6 | UNS | H4 | Square | 00000000 | 000000 |
1 3/8"-8 | 3" | 6 1/16" | 1 1/4" | 1.25" | 4 | UNS | H5 | Square | 0000000 | 000000 |
1 1/2"-8 | 3" | 6 3/8" | 1 3/8" | 1.375" | 4 | UNS | H5 | Square | 0000000 | 000000 |
1 5/8"-8 | 3 3/16" | 6 11/16" | 1 1/2" | 1.5" | 6 | UNS | H6 | Square | 0000000 | 000000 |
1 5/8"-12 | 2" | 5" | 1 9/16" | 1.5625" | 6 | UNS | H6 | Square | 00000000 | 000000 |
1 3/4"-8 | 3 3/16" | 7" | 1 5/8" | 1.625" | 6 | UNS | H6 | Square | 0000000 | 000000 |
1 3/4"-12 | 2" | 5" | 1 11/16" | 1.6875" | 6 | UNS | H6 | Square | 00000000 | 000000 |
2"-8 | 3 9/16" | 7 5/8" | 1 7/8" | 1.875" | 6 | UNS | H6 | Square | 0000000 | 000000 |
2"-12 | 2" | 5" | 1 15/16" | 1.9375" | 6 | UNS | H6 | Square | 00000000 | 000000 |
2 1/4"-8 | 3 9/16" | 8 1/4" | 2 1/8" | 2.125" | 6 | UNS | H6 | Square | 0000000 | 000000 |
2 1/4"-12 | 2" | 5 1/4" | 2 3/16" | 2.1875" | 6 | UNS | H6 | Square | 00000000 | 000000 |
2 1/2"-8 | 4" | 8 3/4" | 2 3/8" | 2.375" | 6 | UNS | H6 | Square | 0000000 | 000000 |
2 1/2"-12 | 2" | 5 1/4" | 2 7/16" | 2.4375" | 6 | UNS | H6 | Square | 00000000 | 000000 |