Milwaukee Hyperwire wire brush products offer faster material removal and greater life yet maintain a finer finish. The full cable twist kNt wire wheel is designed for general heavy duty cleaning of scale, surface oxidation, rubber flash, heavy burrs and weld splatter. Full cable twist kNt wire wheels are available in carbon and stainless steel. This cable kNt wire wheel is designed for use with 4-1/2 or 5 in. Milwaukee and competitive grinders with 5/8 - 11 threaded spindles. Made of carbon steel.