Norton 12″ Diam x 5″ Hole x 1-1/2″ Thick, I Hardness, 46 Grit Surface Grinding Wheel Aluminum Oxide, Type 5, Coarse Grade, 2,070 Max RPM, Vitrified Bond, One-Side Recess 66253263166

Norton 7" Diam x 1-1/4" Hole x 1/2" Thick, I Hardness, 46 Grit Surface Grinding Wheel Ceramic, Type 1, Coarse Grade, 3,600 Max RPM, Vitrified Bond, No RecessManufacturer Part #: 66252940523S/N: 90864893UNSPSC: 23131503UPC: 662529405232(Minimum Order Quanti