2-1/2" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number DWTH112-51624LH

Part Number DWTH112-51624LH

Part Number DWDTSCO7/8

25 and M12-1

Part Number DWRR48

Part Number: 37C150SHCSSS/USA

2-1/2" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number DWTH112-51624LHProduct 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