1-1/4" X 3/8" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number D/A3F1-7/16

Part Number D/A3F1-7/16

Part Number: EZ-EZ-303-5

Part Number DWDTS1-27/64

Part Number KFD3F41/64

Size m24 x 3

1-1/4" X 3/8" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number D/A3F1-7/16Product 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