Special Line Double-Tuff Bore Brush - Double-Tuff Brass Brush, 10mm/.40 Cal Spl Pistol, 12 Pack

Brass coupling and one-piece, looped and wound brass shank with extra-thick, kinked, phosphor bronze bristles give the hard scrubbing action needed to cut through the tough crud and fouling.You'll have to push like the dickens, but the results will be worth it. Mfg: Brownells SPECS: Bristles: Phosphor bronze. Shank: Brass, looped and wound. 2-1/8 (5.4cm) OAL, 8-32 thread.