1-3/8" - 6 Taper (Starting) Tap, High Speed Steel - National Coarse Thread
Model #: TAT-1-3/8-6
- Thread Diameter: 1 3/8"
- Threads per Inch: 6
- High Speed Steel. Ground Thread.
- Taper Style (the style of hand tap with the most lead, for starting threads).
- Recommended Drill Size: 1-7/32"
Taper taps have a long lead (5-6 threads) for starting a thread.