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: 10mm
Pitch: 1mm
Overall length: 63mm
Shaft Diameter: 7.0mm
Drive Square: 5.5mm
Tapping Drill Size: 9.00mm
Weight (gr) 40.00