1-5/16" X 3/8" Pilot Hole HSS Straight Shank Counterbore Quantity:1 The nominal size of a

The nominal size of a Pipe Tap is that of the pipe fitting to be tapped

Part Number: DUR033-95

Part Number DWDDL12X63/64X1/2

Part Number: M4C08ASBA2

Color: White

1-5/16" X 3/8" Pilot Hole HSS Straight Shank Counterbore Quantity:1 The nominal size of aProduct 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