7/16" X 5/32" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: 75C1600BCGSS/316

Part Number: 75C1600BCGSS/316

Part Number DWRRU

Cobalt screw machine drills (also know as stub or stubby drills) are manufactured to Aerospace Standard 907

and tearing • Two Flat Faces – The striking faces are made from 4140 Cr-Mo steel heat-treated to 53 HRC • Nonslip Grip – The textured handle surface provides a comfortable grip for hammering • Short Handle – Gain access into tighter spaces with the reduced handle length • Made in USA

Part Number DWDTSCT31/32

7/16" X 5/32" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: 75C1600BCGSS/316Product Description Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1 8" or less), the operations is usually known as spot facing; for example, a flat seat for a bolt head or nut. If, on the other hand, the hole is enlarged to a considerable depth, it is designated as counterboring. These counterbores are made of two piece construction, having an integral shank and