... , core drill bits, profile wheel, grinding wheel.A>Double row diamond cup wheel for concrete Specification:Outer diameters: 4, 5 ... , 6, 7 inchesCup wheel includes single-, double-row and turboSuitable for fast grinding, rough deburring, smooth shaping, finishing ... Good quality, good packing3, All orders will be delivery at time as discussed4, Have best payment conditions5, All inquiry or questions ...