The J Dewey Rods copper eliminator bore brush is engineered for precision cleaning of firearm barrels, specifically designed to accommodate .25 Cal, 6.5 Cal and 7mm calibers. This product features a #8-32 male thread, ensuring compatibility with a wide range of cleaning rods. Constructed with high-quality materials, the bore brush effectively removes copper fouling without damaging the barrel's rifling. The pack includes three brushes, providing users with extended utility and convenience. Ideal for maintaining optimal firearm performance, the J Dewey Rods bore brush is a reliable choice for both professional gunsmiths and firearm enthusiasts. Constructed with high-durability nylon bristles and a lightweight, corrosion-resistant aluminum core for optimal performance and longevity Compatible with 8-32 internal threaded components Set of three copper eliminator brushes for rifles - optimized for precision cleaning and extended barrel maintenance