35/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore BoltsandNuts.com • Four Punch Types –

• Four Punch Types – Set includes pin

Part Number DWCC410

Part Number: Assortment Kit #415264 Pieces - Coarse Thread

Part Number DWT60862

35/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore BoltsandNuts.com • Four Punch Types –Product 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