9/16" X 5/16" Pilots for Counterbore Shopify Collective Part Number: BIT-DWDSPS

Part Number: BIT-DWDSPS

The punches have a blunt end and a tapered shaft

Part Number: DUR027-95

Part Number: 37C600ASBSS

9/16" X 5/16" Pilots for Counterbore Shopify Collective Part Number: BIT-DWDSPSProduct 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