Brownells 6.5mm #8-32 Male Heavy Weight Bore Brush, Pack of 12

The highly aggressive nylon brush efficiently removes persistent bore deposits. Its extra-stiff, large-diameter bristles are safe for use on rifling and smoothbore surfaces. The brush is resistant to deterioration when used with any preferred solvent. The robust, one-piece, looped and wound brass shank and coupling are designed to prevent scratching. High-density nylon bristles Brass, looped and wound shank Compatible with 8-32 internal threaded components