1-15/16" X 7/16" Pilot Hole HSS Straight Shank Counterbore BoltsandNuts.com Part Number: 100C600HCS8Y

Part Number: 100C600HCS8Y

Part Number DWTSR1-3818

M6 (Aluminum/Steel)

Part Number DWTMHX22X2

Part Number: BIT-DMS04-1064

1-15/16" X 7/16" Pilot Hole HSS Straight Shank Counterbore BoltsandNuts.com Part Number: 100C600HCS8YProduct 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