3" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-DWDSP23/64

Part Number: BIT-DWDSP23/64

Part Number: Assortment Kit #640421 Pieces

The Tekton 41-Piece Flat End Hex and Star L-Key Set includes 0

Part Number DWRRSS1-1/8

and reduced slipping under torque

3" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-DWDSP23/64Product 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