Cut-Off Grinding Wheel Abrasive Material Zirconia Alumina Connector Size 7/8 in Connector Type Unthreaded Hole Grit 24 Overall Diameter 7 in Overall Thickness 0.125 in Primary Material Applicationn Cast Iron Stainless Steel Steel Compatible Tool Type Angle Grinder Series The Ultimate Pipeline Wheel Type Type 27 Maximum Operating Speed 8 500 RPM Grade Extra Coarse