Precision, surface-ground file deepens barrel locking lugs without increasing width. Safe on two sides to let the gunsmith file to a close fit with no chance of widening lug area. #2 cut, Swiss pattern cuts smoothly; little or no additional stoning/polishing is needed. Mfg: Brownells SPECS: 6'''' (15.2cm) long. .171'''' (4.35mm) square.
