3/4" X 7/16" Pilots for Counterbore Quantity:1 Part Number DWRRB1-1/2

Part Number DWRRB1-1/2

Provides Lubrication & Prolongs Tool Life

Part Number DMOD37

Part Number: BIT-T/A54392

Part Number DWTSMH14X1

3/4" X 7/16" Pilots for Counterbore Quantity:1 Part Number DWRRB1-1/2Product 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