2-7/8" X 1/2" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Pilot Dia 11/64"

Pilot Dia 11/64"

Part Number DMS04-8016

It's designed with just the right amount of friction so that the handle won't flop around

One size arbor fits a range of sizes

the geometry of each opening contacts and applies force to the flat sides of fastener heads rather than the corners • No Skipped Sizes – This set contains every size from 1/4 inch to 13/16 inch

2-7/8" X 1/2" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Pilot Dia 11/64"Product 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