1" - 8 Taper (Starting) Tap, High Speed Steel - National Coarse Thread
Model #: TAT-1-8
- Thread Diameter: 1"
- Threads per Inch: 8
- High Speed Steel. Ground Thread.
- Taper Style (the style of hand tap with the most lead, for starting threads).
- Recommended Drill Size: 7/8"
Taper taps have a long lead (5-6 threads) for starting a thread.