61/64" X 1/4" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Part Number DWDRSD34X1-13/16

Part Number DWDRSD34X1-13/16

External Thread: 3/4"-10

Part Number DWRRHDES1-1/4

flat on the other

Drive Socket Rail securely holds 1/2 in

61/64" X 1/4" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Part Number DWDRSD34X1-13/16Product 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