43/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore BoltsandNuts.com Part Number: Assortment Kit #145378

Part Number: Assortment Kit #145378 Pieces - Fine Thread

Drill Bit Size: #29

Products individually labeled and poly bagged

Part Number T/A54027

chrome-plated finish easily wipes clean and is highly resistant to corrosion • Twist-to-lock socket rail organizes and securely holds sockets in place

43/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore BoltsandNuts.com Part Number: Assortment Kit #145378Product 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