Clean and Strip Cup Wheel, Abrasive Material Silicon Carbide, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Grade Extra Coarse, Overall Diameter 4 in, Quick Change System Not Applicable, Series XCS, Maximum Operating Speed 12,100 RPM, Abrasive Type Non-Woven, Color Black, Grit Extra Coarse, Resistance Properties Heat, Load