3/16" X 3/32" Pilot Hole HSS Straight Shank Counterbore Shopify Collective angled teeth and a slip

angled teeth and a slip joint that adjusts to three positions

Size 53/64"

Drill Bit Size: #3

Size m15 x 2

3/16" X 3/32" Pilot Hole HSS Straight Shank Counterbore Shopify Collective angled teeth and a slipProduct 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