End Brush, Product Type End Brush, Quick Change System Not Applicable, Bristle Type Crimped Wire, Bristle Material Stainless Steel, Brush Dia. 1 in, Wire Dia. 0.006 in, Bristle Length 1 in, Grit Not Applicable, Overall Length 3 in, Compatible Tool Type Straight Grinder, Drill, Impact Driver, Pencil Grinder, Color Silver, Primary Material Application Carbon Steel, Stainless Steel, Connector Type Round Shank, Connector Size 1/4 in, Operating Speed – Maximum 22,000 RPM, Shank Length 5/8 in