2-3/8" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-T/A54359

Part Number: BIT-T/A54359

24 Hole Metal Compartment Tray

Tap Size: M16-2

Part Number: Assortment Kit #276573 Pieces - Coarse Thread

Length 2-3/4"

2-3/8" X 1/2" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-T/A54359Product 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