1-3/4" X 7/16" Pilot Hole HSS Taper Shank Counterbore Shopify Collective Part Number: 50C550WASS

Part Number: 50C550WASS

Our T-handle keys have two ends—both a ball-end long arm for spinning out fasteners

Part Number GLBCOX125

Part Number: Assortment Kit #573

1-3/4" X 7/16" Pilot Hole HSS Taper Shank Counterbore Shopify Collective Part Number: 50C550WASSProduct 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