15/16" X 3/8" Pilots for Counterbore Shopify Collective Part Number: 100C250SHB307Z

Part Number: 100C250SHB307Z

Part Number: DUR368-95

Part Number: M14C1000RODA2

Tap Drill Size #11

Part Number MMO1/8-4FSE-LONG

15/16" X 3/8" Pilots for Counterbore Shopify Collective Part Number: 100C250SHB307ZProduct 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