#10 .189mm Machine Screw Solid Counterbore Shopify Collective Part Number DWDDL18X27/64

Part Number DWDDL18X27/64

Part Number: 100C1000HSBA325PL/PT

Drill Size: 10

Part Number DULSF3X6

Part Number DWT54973

#10 .189mm Machine Screw Solid Counterbore Shopify Collective Part Number DWDDL18X27/64Product 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