6" Grit:60 PREMIUM REZ Soft Lapidary Diamond Cabbing Grinding Sanding Wheel 6 inch SOFT PREMIUM diamond lapidary grinding wheel, GRIT: 60 Wheel outside diameter: 6 inch Wheel width: 1 1/2 inch Bore diameter: 1 inch Reducing spacer included to fit arbor shafts: 1 inch, 3/4 inch, 5/8 inch, 1/2 inch