3" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Just grab them and go—no

Just grab them and go—no adjustments

Part Number: 25CHSNB

Part Number DWTSH1-3/4-20

Part Number DWTH1316-1420LH

3" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Just grab them and go—noProduct 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