Discover this high - performance 7 - piece wire wheel brush set, perfect for 4 - 1/2 in. angle grinders and those with 5/8 in. - 11 threaded arbors. The set includes 4 in. knotted and crimped wire wheels, as well as 3 in. knotted and crimped wire cups. With a 5/8 in. - 11 UNC threaded arbor, 0.02 in. knotted wires, and 0.012 in. crimped wires, it can reach a maximum speed of 12,500 RPM. Made from premium carbon steel, it offers excellent wear resistance and a long service life. The thick internal holding plate ensures stability, even at high speeds and under heavy pressure. Suitable for both light and heavy - duty work, it can be used on metal, wood, and other materials to remove rust, paint, weld scale, and more. Whether you're working on auto body repair, metal fabrication, or surface finishing, this brush set will be your reliable tool, making your work easier and more efficient.