1-1/2" X 3/8" Pilot Hole HSS Straight Shank Counterbore Quantity:1 About High Speed Steel Hex

About High Speed Steel Hex Dies: For use in making new threads or re-threading existing threads

A2-70 Stainless Hex Head Cap Screws DIN 931 / 933

The set comes equipped with a 90-Tooth quick-release ratchet as well as a universal joint and extension

Part Number T/A57048TN

Part Number: M16C40BFL12PL

1-1/2" X 3/8" Pilot Hole HSS Straight Shank Counterbore Quantity:1 About High Speed Steel HexProduct 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