7/8" X 1/2" Pilots for Counterbore Quantity:1 The bits are made from

The bits are made from S2 steel that's heat-treated to 57–63 HRC to help maintain their geometry under stress

Part Number: EZ-303-5

Length 6-7/8"

Part Number DWDA/CX1257

Use the Tekton 3/4 in

7/8" X 1/2" Pilots for Counterbore Quantity:1 The bits are made fromProduct 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