63/64" X 5/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Premium Cow Grain Leather Palm

Premium Cow Grain Leather Palm

Part Number: M20X130DPAPL

Part Number: BIT-DMS04-1040

hex-grip teeth for turning hex bolts

63/64" X 5/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Premium Cow Grain Leather PalmProduct 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