vitrified grinding wheel, cutting disc, resinoid grinding wheel for metal , stone , glass, ceramic , aluminium, stainless steel, vitrified wheels ... , black and green silicon carbide, used for grinding metal, stainless steel, cast iron, cooper, marble and granite, porcelain tile, glass and ... of metal or non-metal process.super thin cutting disc for needle, available size 180x0.5 to 0.8mmRubber control ...