End Brush Product Type End Brush Quick Change System Not Applicable Bristle Type Crimped Wire Bristle Material Abrasive Nylon Brush Dia 3/4 in Wire Dia 0.006 in Bristle Length 1 in Grit 320 Overall Length 2 1/4 in Compatible Tool Type Straight Grinder Color Silver Primary Material Application Carbon Steel Connector Type Shank Connector Size 1/4 in Operating Speed - Maximum 4 500 RPM