
Precise H.S.S. Spiral 3 Flute Bottom Tap, 1/4-20NC Size, H3 H Limit - 1011-8613
Brand: Precise
$6.95
Precise H.S.S. Spiral 3 Flute Bottom Tap, 1/4-20NC Size, H3 H Limit - 1011-8613
- H.S.S. - High Speed Steel.
- Ground from solid.
- Ground thread.
- A bottoming tap has 1-2 lead threads ground.
They are used for continuing to thread a blind hole close to the bottom of the hole. - It's difficult to start threading a hole with this tap.
- Bottoming taps are not necessarily flat on the bottom, they sometimes have a 60 degree tapered point from the manufacturing process.
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