61/64" X 1/4" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Part Number: EZ-21515

Part Number: EZ-21515

Part Number: EZ-SK51015

Part Number DWDRSD34X1-13/16

flat on the other

The flex head sweeps smoothly through 180-degrees without any set positions

61/64" X 1/4" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Part Number: EZ-21515Product 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