15/16" X 1/2" Pilots for Counterbore Quantity:1 Part Number MMO5/8-4FSE-LONG

Part Number MMO5/8-4FSE-LONG

Part Number STE2

Part Number: BIT-DWDN41/64

Recommended Predrill Hole Size: 7/16"

Two flat sides on the steel shaft help it resist being twisted or pulled out of the handle

15/16" X 1/2" Pilots for Counterbore Quantity:1 Part Number MMO5/8-4FSE-LONGProduct 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