The DOUBLE-TUFF™ bore brush features extra-thick, kinked, phosphor bronze bristles designed for heavy-duty scrubbing, capable of removing tough carbon deposits without scratching the bore.
Designed for .458 caliber rifles, these brushes are 3.25" long with 8-32 male threads, while .54 and .58 caliber brushes have 10-32 male threads.
Manufactured by BROWNELLS, the brushes come in a 3 pack, with a steel shank that's looped and wound for durability.