Carbide sintered rods with two straight coolant hole: Diameter fro 0.3 to 42mm Table of grade and properties of carbide rods. Grade ISO Cobalt Grain Size Hardness Density TRS (%) (μm) (HRA) (g/cm3) (MPa) YG3X K01-K05 3 0.8 92 14 2000 YG6 K10-K20 6 1.2 90.5 14....