2BA Threaded Shank Counterbore • HSS • Used to enlarge the opening of a hole to allow room for the head of a fastener List Number MC27002 Substrate HSS Package Quantity 1 Shank 1/4 Length 2-1/2 Flute Count 2 Bolt 2BA Pilot Diameter 0.200 Pilot Length 7/32 Cut Length 1/2 Diameter 0.344 SKU: MC27002 Category: Counterbores Related products LGS8-1 Weldon Tu-Lip Conterbore Item #: CW90281 LGN8-1 Weldon Tu-Lip Conterbore Item #: CW90081 LGS8-3 Weldon Tu-Lip Conterbore Item #: CW90283