1-1/8" X 5/16" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-DMS04-1051

Part Number: BIT-DMS04-1051

Part Number: Assortment Kit #145378 Pieces - Fine Thread

The hammer has two striking faces

Part Number SDS4F3812

Part Number: BIT-D/ACO3/8X31/64

1-1/8" X 5/16" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-DMS04-1051Product 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