Miniature End Brush Product Type End Brush Quick Change System Not Applicable Bristle Type Crimped Wire Bristle Material Stainless Steel Brush Dia 3/16 in Wire Dia 0.003 in Bristle Length 1/4 in Grit Not Applicable Overall Length 2 1/4 in Compatible Tool Type Die Grinder Color Silver Primary Material Application Stainless Steel Connector Type Shank Connector Size 1/8 in Operating Speed - Maximum 37 000 RPM