Zirconia Alumina Connector Size 5/8 in Connector Type Unthreaded Hole Grit 14 Overall Diameter 8 in Overall Thickness 1 in Compatible Tool Type Die Grinder Primary Material Applicationn Nickel Alloy Stainless Steel Steel Titanium Tool Steel Specification NV14-T Wheel Hardness T Wheel Type Type 1 Series BlueFire 4NV ZA Grade Extra Coarse Item Portable Snagging Wheel