- Thread Size: 7/16"-20
- Set Includes: (1) Taper Tap, (1) Plug Tap, (1) Bottoming Tap
- High Speed Steel
- Use For Creating New Internal Threads
- Taper Taps Have A Chamfer Between 7 To 10 Threads, Commonly Called Starting Tap
- Plug Taps Have A Chamfer Between 3 To 5 Threads, Used As The Second Tap
- Bottoming Taps Are Made With Just Enough Chamfer For Starting In The Hole, Only 1 To 2 Threads, Also Know As A Finishing Tap
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