3/4" 13/16" Continuous Pilot Capscrew Counterbore Quantity:1 Part Number: BIT-T/A54788

Part Number: BIT-T/A54788

Size 3/8"-48

Size 4-1/4"

The bits are made of S2 steel and have a zinc-phosphate coating that resists corrosion

Size: 35/64"

3/4" 13/16" Continuous Pilot Capscrew Counterbore Quantity:1 Part Number: BIT-T/A54788Product 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