Silicon Carbide Connector Size 1 1/2 in Connector Type Unthreaded Hole Grit 60 Overall Diameter 12 in Overall Thickness 2 in Compatible Tool Type Bench Grinder Pedestal Grinder Primary Material Applicationn Aluminum Brass Bronze Cast Iron Copper Masonry Natural Stone Stainless Steel Titanium Specification 39C60-KVMT Wheel Hardness K Wheel Type Type 1 Maximum Operating Speed 2 710 RPM Series 39C Grade Medium Bond Type Vitrified Color Green Item Straight Grinding Wheel