1" X 1/2" Pilots for Counterbore BoltsandNuts.com Size SB-12

Size SB-12

lineman's pliers for twisting and cutting wire

Tekton curved jaw pliers have a curved section of the jaw that locks onto hex-shaped bolts

Part Number SDS3412

1" X 1/2" Pilots for Counterbore BoltsandNuts.com Size SB-12Product 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