Forney 72860 Wire Cup Brush, Industrial Pro Coarse Crimped with 5/8-Inch-11 Threaded Arbor, 5-Inch-by-.012-Inch Specially designed for use on portable machines, angle grinders, electric or pneumatic Appropriate for brushing large surfaces with a medium removal capacity New exclusive and patented design threads allow an easier attachment Increases resistance, resulting in more safety for the user