Tipton Nylon Bore Brush 13 Piece Set with Molded Hinge-top Storage Box for Gun Cleaning and Maintenance

The Nylon Brushes are constructed of a material that is unaffected by most modern powder and copper solvents. This resistance is a bennefit over bronze brushes. The bristles are designed to be very ridged providing maximum bore scrubbing performance. Molded hinge top storage box included. Threads are industry standard: 8-32 on .22 cal through .45 cal. The .17 cal has 5-40 threads. Calibers included: - .17 - .22 - .243/6mm - .25 - 6.5mm - .270 - 7mm - .30 - 8mm - .338 - .35 - .375 - .40/.416 - .44/.45