Aluminum Oxide Connector Size 1 1/4 in Connector Type Unthreaded Hole Grit 46 Overall Diameter 8 in Overall Thickness 1/2 in Compatible Tool Type Cylindrical Grinder Surface Grinder Tool and Cutter Grinder Primary Material Applicationn Steel Tool Steel Specification 48A46-I8VBE Wheel Hardness I Wheel Type Type 1 Maximum Operating Speed 3 105 RPM Series 48A Grade Coarse Bond Type Vitrified Color Pink Item Straight Grinding Wheel Package Quantity 5