Super-aggressive, nylon brush makes short work of stubborn bore deposits. Extra-stiff, large diameter bristles are safe on rifling and smoothbore surfaces. WonX'Xt deteriorate when used with your favorite solvent. Strong, one-piece, looped and wound brass shank and coupling prevents scratching. Mfg: Brownells SPECS: Bristles: Heavy weight (HW) nylon. Shank: Brass, looped and wound. Rifle: 3 1/4X"X (8.3cm) OAL, 8-32 thread. Pistol/Revolver: 2-1/8X"X (5.4cm) OAL, 8-32 thread. Shotgun: 2-7/8X"X (7.3cm) OAL, 5/16X"X-27.
