Drilling, Drills & Bits
Description
BOTTOMING taps have a lead of two threads and are used when tapping blind holes. Usually preceded by a taper or intermediate tap. Alpha bottoming taps can be identified by their plain shaft, they have no rings on the shaft near the driving square.
- Diameter: 7/16mm
- Pitch: 20mm
- Overall length: 63mm
- Shaft Diameter: 8mm
- Drive Square: 6.2mm
- Tapping Drill Size: 9.90mm
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