13/16" X 1/4" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Shape Roughing

Shape Roughing

clamp the drop mallet in a vise so the jaws grip the sides of the insert firmly

Part Number: Assortment Kit #154378 Pieces - Coarse Thread

Lock the rails into the tray with the keyhole slot

Part Number KFDRB1-1/16HEX

13/16" X 1/4" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Shape RoughingProduct 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