5/8" X 5/16" Pilots for Counterbore Quantity:1 Part Number VAC3

Part Number VAC3

Part Number: EZ-303-008

Tekton L-Keys are made with 8660 nickel chromium molybdenum steel that's heat-treated to HRC 54-58 to produce tools that are hard

This set includes 1/2 inch drive 3

Part Number: Assortment Kit #505

5/8" X 5/16" Pilots for Counterbore Quantity:1 Part Number VAC3Product 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