15/16" X 1/2" Pilots for Counterbore Quantity:1 Part Number: 31C200SHCSB

Part Number: 31C200SHCSB

Part Number: 100C475HSBA325G/PT

This set includes a modular wrench organizer that fits most toolbox drawers

The set includes 1/4 inch drive bit sockets in an open top drawer and a stacking drawer rack

Tap Drill Size 1-5/32"

15/16" X 1/2" Pilots for Counterbore Quantity:1 Part Number: 31C200SHCSBProduct 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