The BOLT LAPPING TOOLS BROWNELLS ONE GUN BOLT LAPPING SET provides constant, straight-back pressure for squaring bolt lugs against the receiver during lapping.
It includes interchangeable threaded sleeves for compatibility with Winchester Model 70 and other popular actions.
The set is designed for use with 600 to 800 grit silicon carbide abrasive, enhancing lapping results compared to using thumb pressure alone.