The KleenBore Chambermate 12 Gauge brush is a tapered heavy-duty cleaning brush that is designed to clean out fouling such as excessive wad fouling and unburned powder from the chamber of 12 GA Shotguns. This brush is commonly used in conjunction with the KleenBore ChamberMate 12 GA tool #SC225.
 
Features: 
Heavy-duty tapered phosphor bronze bristles
Good for cleaning choke tubes, chamber, muzzle ports, forcing cones, and more
Compatible with KleenBore ChamberMate Shotgun Cleaning Tool
#5/16-27 American Std. Shotgun Threads
Made in USA