1-3/8" X 3/8" Pilot Hole HSS Taper Shank Counterbore Shopify Collective The chisels cut rusted bolts

The chisels cut rusted bolts and rivet heads

Part Number: 62F600HCS8Y/USA

Part Number: M16C100HCSSS/A4

Part Number: BIT-T/A54582

1 - Fuse Tester Tool

1-3/8" X 3/8" Pilot Hole HSS Taper Shank Counterbore Shopify Collective The chisels cut rusted boltsProduct 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