For Critical Fitting Of Match-Grade Barrel Top Lugs
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.
1911, Issue:11, Page:055
Big Book Catalog, Issue:72, Page:146
SPECS: 6" (15.2cm) long. .171" (4.35mm) square.