Wire brushes are intended primarily for use on portable power tools for addressing larger surface areas more efficiently than a wheel brush. Cup brushes featuring a threaded nut are designed for smooth, efficient operation on angle grinders to make quick work of large jobs. Utility cup brushes featuring a permanently attached 1/4" stem are more suitable for smaller jobs and are recommended for use on high-speed air tools for the most effective brushing action and longest life. Brushes are available in a variety of knot wire and crimped wire configurations for use in a broad range of surface cleaning applications,and they are manufactured with individual knot hole and solid ring construction for high performance and long life. SEB's cup brushes are available in heat-treated steel,stainless steel,and bronze or brass wire. Lead Time:14days