Aluminum Oxide Connector Size 3 in Connector Type Unthreaded Hole Grit 46 Overall Diameter 10 in Overall Thickness 1/2 in Compatible Tool Type Cylindrical Grinder Surface Grinder Tool and Cutter Grinder Primary Material Applicationn Aluminum Cast Iron Stainless Steel Steel Tool Steel Specification 32A60-JVBE Wheel Hardness J Wheel Type Type 1 Maximum Operating Speed 2 485 RPM Series 32A Grade Medium Bond Type Vitrified Color Gray Item Straight Grinding Wheel