Alpha HSS Tap UNC Bottoming 5/16x18 UNCHB516

• Drilling, Drills & Bits

$25.69

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Description

5/16x18

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: 5/16mm
• Pitch: 18mm
• Overall length: 53mm
• Shaft Diameter: 6mm
• Drive Square: 4.9mm
• Tapping Drill Size: 6.60mm
• Weight (gr)    25.00