Alpha HSS Tap UNC Bottoming-1x8 UNCHB1BOTTOMING 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: 1mm Pitch: 8mm Overall length: 110mm Shaft Diameter: 18mm Drive Square: 14. 5mm Tapping Drill Size: 22. 25mm Weight (gr) 260. 00

Size 86mm x 91mm

Weight (gr)    310

38mm 3/32”

protective case

0 x 40 x 224mm

The water based formula contains no oils

Length (mm)    227

Supplied Empty

Diameter (mm) 86

OAL (mm)    102

storage tanks

The torsion zone provides maximum strength for high impact & extreme torque loads