TYPES OF GRINDING WHEELS
aluminum oxide clay containing silica iron oxide titanium oxide mixed with ground coke and iron borings in a arc type electric furnace Preferred for grinding of materials of higher tensile strengths like steel high carbon and high speed steel and tough bronze Coarse 10 12 14 16 20 24 Medium 30 36 46 54 60 Fine 80 100 120 150 180 VeryFine 220 240 280 320 400