15/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Length 151

Length 151

Low Carbon 1/8" Thick Fender Washers

Part Number: 75F350HCSSS

Part Number KFD3F1-29/64

15/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Length 151Product 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