Pipe and Conduit Thread Taps
Create threads sized for pipe and conduit. For use on 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. They have a square shank that's compatible with tap wrenches and tap holders for drill presses and milling machines.
Uncoated taps are strong enough for most tapping jobs but have the shortest tool life. 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.
For technical drawings and 3-D models, click on a part number.
Economy Carbon Steel Pipe and Conduit Thread Taps
Use these carbon steel taps for thread repair and occasional tapping of pipe and conduit. They can tap threads into most metal and plastic, but they have a shorter tool life than standard taps. With a square shank, they're 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. 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.
Drill Bit | Plug Chamfer | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Thread Type | Threads Per Inch | Thread Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Each | |
Uncoated Carbon Steel | |||||||||
| 2 1/2 | NPT | 8 | 2 3/4" | 5 1/2" | 2 5/8" | 2.625" | 8 | 000000000 | 0000000 |