- Thread Size: 4/40"
- Overall Length: 1-7/8"
- Flute Length: 9/16"
- Flutes: 3
- High Speed Steel
- Bottoming Taps Are Made With Just Enough Chamfer For Starting In The Hole, Only 1 To 2 Threads
- Designed To Thread Blind Holes To The Bottom
- Finishing Tap
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