13/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore Quantity:1 They are rectangular in cross

They are rectangular in cross section and taper slightly towards the point in both width and thickness

They are calibrated to be accurate within ±3% for both clockwise and counterclockwise directions and certified to the ISO standard for the full listed range (40 - 300 ft-lb)

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 • Made in USA

Part Number: 87F350HCSSS/316

Length: 10"

13/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore Quantity:1 They are rectangular in crossProduct 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