9/16" X 5/16" Pilots for Counterbore Shopify Collective Wrench Size: 22MM

Wrench Size: 22MM

Part Number DWTSH1-1/8-8

Part Number: BIT-DWDCO29/32

Part Number DMOD47

Part Number BRCT341

9/16" X 5/16" Pilots for Counterbore Shopify Collective Wrench Size: 22MMProduct 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