39/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Wheels & Gears

Wheels & Gears

The 12-point openings double the access angles of 6-point wrenches and make it easier to work in tight spaces

Size 1-1/4"-11-1/2"

Part Number DULSH7

Ideal for maintenance in the shop or field

39/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Wheels & GearsProduct 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