Cut-Off Grinding Wheel Abrasive Material Aluminum Oxide Connector Size 5/8 In.-11 Connector Type Threaded Hole Grit 24 Overall Diameter 9 in Overall Thickness 0.125 in Primary Material Applicationn Cast Iron Steel Compatible Tool Type Angle Grinder Series A24R Pipeline Wheel Type Type 27 Maximum Operating Speed 6 600 RPM Grade Extra Coarse