Radial Bristle Brush, Bristle Type Type C, Product Type Radial Bristle Brush, Bristle Material Ceramic, Brush Dia. 7 5/8 in, Grit 120, Face Width 1 in, Compatible Tool Type Bench Grinder, Pedestal Grinder, Primary Material Application Aluminum, Brass, Bronze, Cast Iron, Stainless Steel, Steel, Connector Type Unthreaded Hole, Connector Size 1 1/4 in, Operating Speed – Maximum 6,000 RPM, Shank Length Not Applicable, Color White