Weiler 2-3/4" Crimped Wire Cup Brush provides very flexible brushing action and the most consistent performance for demanding light-duty cleaning applications. 5/8"-11 threaded nut for use on right angle grinders. Weiler offers an assortment of wire non-sparking brushes featuring high-quality bronze or brass wire that offer a very soft brushing action in comparison to steel and stainless steel and will not generate a spark when used on metal surfaces. These products 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. Weiler's non-sparking power brushes are available with plain arbor holes, nuts, and permanently attached stems for use on a variety of tools. Made in USA.