2-1/2" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number DWRR48

Part Number DWRR48

Tekton punch and chisel set PNC99001 (not included)

Part Number: 100C250NCPLSS

Part Number DWDTSCO7/8

2-1/2" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number DWRR48Product 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