5/16" 11/32" Continuous Pilot Capscrew Counterbore Quantity:1 Hand Expansion Reamers are used

Hand Expansion Reamers are used to enlarge holes in order to get proper fit

Part Number DWDRSD25

Insert Material: Stainless Steel

Part Number: 87X500DPAPL

5/16" 11/32" Continuous Pilot Capscrew Counterbore Quantity:1 Hand Expansion Reamers are usedProduct 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