5/16" X 3/32" Pilot Hole HSS Taper Shank Counterbore Quantity:1 a measure of strength verified

a measure of strength verified by a single-cycle test that applies torque until the specified value is reached without failure or permanent deformation

Part Number SDS3418

All Tekton punches and chisels are made in the USA

Part Number D/ARSD1-7/16

Shank Size: 35/64"

5/16" X 3/32" Pilot Hole HSS Taper Shank Counterbore Quantity:1 a measure of strength verifiedProduct 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