NORTON 66253044013 - 8" DIAM X 1-1/4" HOLE X 1/2" THICK, I HARDNESS, 60 GRIT SURFACE GRINDING WHEEL - 8" DIAM X 1-1/4" HOLE X 1/2" THICK, I HARDNESS, 60 GRIT SURFACE GRINDING WHEEL SILICON CARBIDE, TYPE 1, MEDIUM GRADE, 3,600 MAX RPM, VITRIFIED BOND, NO...