3/8" HSS Solid Counterbore Quantity:1 Size: #1 (1/8"- 1/2 by

Size: #1 (1/8"- 1/2 by 1/32")

Part Number KFDMM12

Part Number MMO7/16-2FSE

Made of durable 1/4" thick hard plastic

Part Number D/ACO1/2

3/8" HSS Solid Counterbore Quantity:1 Size: #1 (1/8"- 1/2 byProduct 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