Disc Brush Product Type Disc Brush Quick Change System Not Applicable Bristle Type Dot Bristle Material Ceramic Brush Dia 150 mm Wire Dia 0.04 in Bristle Length 38 mm Grit 120 Overall Length Not Applicable Compatible Tool Type CNC Machine Color Black Primary Material Application Aluminum Brass Carbon Steel Copper Iron Stainless Steel Operating Speed - Maximum 1 800 RPM Shank Length Not Applicable