1/4" X 3/32" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-DWTHX1220

Part Number: BIT-DWTHX1220

Part Number: VibraTite90718oz

Part Number DEW2X5

Part Number DWDTS11/16

The socket is also coated with a manganese phosphate finish to resist corrosion

1/4" X 3/32" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-DWTHX1220Product 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