179-3456, 3M, 3M Roloc Silicon Carbide Sanding Disc, 76mm, Extra Coarse Grade, 048011-18350-3, 40 in pack, Brand 3M, Disc Type Sanding Disc, Disc Diameter 76mm, Abrasive Material Silicon Carbide 3M Roloc Silicon Carbide Sanding Disc, 76mm, Extra Coarse Grade, 048011-18350-3, 40 in pack