2-1/2" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Hand Tap Size Range 7/32"-

Hand Tap Size Range 7/32"- 1/2"

Tekton punch and chisel set PNC99001 (not included)

Part Number DWTH112-51624LH

Part Number DWCF341-CC

Part Number: 100C250NCPLSS

2-1/2" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Hand Tap Size Range 7/32"-Product 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