1/2" - 20 Plug Tap, High Speed Steel - National Fine Thread
Model #: TAP-1/2-20
- Thread Diameter: 1/2"
- Threads per Inch: 20
- High Speed Steel. Ground Thread.
- Plug taps are the most popular hand tap, with a chamfer in between Taper Taps and Bottoming Taps.
- Recommended Drill Size: 29/64"
Can be used in a machine as well as by hand, but it does not drive the chips ahead like a Spiral Point Tap.