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. Titanium-nitride (TiN) coated taps resist heat and wear better than uncoated taps, letting them last up to twice as long.
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. 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 High-Speed Steel | |||||||||
| 1/16 | NPT | 27 | 11/16" | 2 1/8" | C | 0.242" | 4 | 00000000 | 000000 |
| 1/16 | NPTF | 27 | 11/16" | 2 1/8" | C | 0.242" | 4 | 00000000 | 00000 |
Titanium Nitride (TiN) Coated High-Speed Steel | |||||||||
| 1/16 | NPT | 27 | 11/16" | 2 1/8" | C | 0.242" | 4 | 0000000 | 00000 |
| 1/16 | NPTF | 27 | 11/16" | 2 1/8" | C | 0.242" | 4 | 0000000 | 00000 |
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 | |||||||||
| 1/16 | NPT | 27 | 11/16" | 2 1/8" | C | 0.242" | 4 | 000000000 | 000000 |
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.
Pipe and Conduit Thread Taps for Stainless Steel and Plastic
The spiral flutes on these pipe and conduit taps keep chips clear by drawing them back out of the hole, so there's no need to reverse the tap while cutting threads. All have a square shank, so they're compatible with tap wrenches and tap holders for drill presses and milling machines.
Titanium-nitride (TiN) coated cobalt steel taps can cut threads in plastic and stainless steel. They resist heat and wear better than high-speed steel taps, letting them last up to twice as long. All have a plug chamfer with 3-5 chamfered cutting threads, so they require moderate torque and are good for start-to-finish tapping.
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 | |
| 1/16 | NPT | 27 | 11/16" | 2 1/8" | C | 0.242" | 4 | 0000000 | 000000 |