3" X 1/2" Pilot Hole HSS Straight Shank Counterbore BoltsandNuts.com Part Number DWDA/CX12W

Part Number DWDA/CX12W

Hex Lag Screws A307 Grade A Zinc Clear

The set includes 3/8 inch drive 6-point sockets and accessories in a 3-drawer stack

Part Number DWTG1

Part Number DWTSMT26X1

3" X 1/2" Pilot Hole HSS Straight Shank Counterbore BoltsandNuts.com Part Number DWDA/CX12WProduct 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