3/4" X 1/4" Pilots for Counterbore BoltsandNuts.com creating clearance for your fingers

creating clearance for your fingers and making it easier to reach around obstructions • Quick Access Wrench Rack Slots - The wrenches rest in slots

Part Number: 50C400HCSAL

Size 3/8"-48

The durable polypropylene construction resists fuels and chemicals and has no sharp edges to scratch tools

Size m19 x 1

3/4" X 1/4" Pilots for Counterbore BoltsandNuts.com creating clearance for your fingersProduct 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