Solid Pilot Counterbore: 0.228" Dia, 0.138" Pilot, 4 Flutes MPN:301-0.6320

The Solid pilot counterbore is designed for creating countersunk holes to allow hardware like screws or bolts to sit flush with or slightly beneath the surface of material surfaces while preserving strength against twisting under stress situations due to their increased bearing area on the top. It comes in 0.228'' diameter with a length suitable for most threaded insert installations and can be used alongside drill bits whose size corresponds to hole diameters when working with sheet metal, aluminum or other light gauge metals within industries such as electronic enclosures manufacturing shops, appliance production factories or the transportation industry amongst others whose users aim for neat finishes on projects.