5/8" X 1/2" Pilots for Counterbore BoltsandNuts.com Size 5/16"-72

Size 5/16"-72

these end mills provide reliable and consistent results in both roughing and finishing operations

clear die-stamped size marking is easy to read and can’t wear off • Four detent grooves provide a secure connection with the drive tool and a drilled through-hole allows locking on with retaining pin • Polished

Part Number: DUR013-95

Part Number DWTSMR1316-7X

5/8" X 1/2" Pilots for Counterbore BoltsandNuts.com Size 5/16"-72Product 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