The BOLT LAPPING TOOLS by BROWNELLS provide constant, straight-back pressure for squaring bolt lugs against the receiver during lapping.
Interchangeable threaded sleeves are designed to fit a variety of popular action types, including specific models for M14/M1A, Mauser, and Savage rifles.
The tool is designed for use with 600 to 800 grit silicon carbide abrasive, ensuring better lapping results than using thumb pressure alone.