... are used in cast iron, hot resistant alloy steel, non-ferrous metal and nonmetal. At the same time it can be used ... finishing cutting tool at low speed for cast iron, nonferrous metal, nonmetal material. K20-K30 YG10X 14.65 3500 91.5 ... steel, hot resistance steel, Cr, Ti, Ni alloy, synthetic material, non metal material , alloy steel even woods. K20-K30 Specifications: Diameter: D3 ...