Brownells Steel One Caliber Set .177 Airgun Muzzle Crown and Chamfer Tool

Set includes: one, 90deg facing cutter to square a muzzle after shortening, or repair damage; one, 45deg chamfering cutter to break the edges of the rifling for a clean bullet exit or chamfer a revolver cylinder mouth for quick reloads; plus one handle that fits either cutter and one steel bore pilot. Interchangeable pilot keeps cutter properly aligned. Purchase extra pilots to use one cutter for many different calibers. Pilots for other calibers available separately. Mfg: Brownells SPECS: Facing Cutter - Hardened steel. 3A 1/4'''' (8.2cm) long (except .165'''' cutter, 2-3/8'''' (6cm) long). 1'''' (2.5cm) or .750'''' (19mm) diameter as required. Chamfer Cutter - Hardened steel. 3A 1/4'''' (8.25cm) long (except .165'''' cutter, 2-3/8'''' (6cm) long). A 1/2'''' (12.7mm) or 5/8'''' (15.8m