1/4 Threaded Shank Counterbore • HSS • Used to enlarge the opening of a hole to allow room for the head of a fastener List Number MC27016 Substrate HSS Package Quantity 1 Shank 1/4 Length 3" Flute Count 2 Bolt 1/4 Pilot Diameter 9/32 Pilot Length 5/16 Cut Length 1/2 Diameter 13/32 SKU: MC27016 Category: Counterbores Related products LGS12-2 Weldon Tu-Lip Conterbore Item #: CW90322 LGS16-3 Weldon Tu-Lip Conterbore Item #: CW90363 LGN6-2 Weldon Tu-Lip Conterbore Item #: CW90062