... /M35 according to standard of GB,ASTM,DIN,JIS, HIGH SPEED TOOL STEELGRADESCHEMICAL COMPOSTIONS%GBAISIJISDINCMnP≤S≤SiCrVWMoCoOTHERW18Cr4VT1SKH2S18-0-10.70~0.80 ... ~1.351.15~1.859.00~107.75~8.25 High Speed Steel Series Size:Dia.2.0mm-13.5mm , Other ... to be discussed Application :Driller, Topper,Cut Tools, Punch, Bearing High Speed Tool Steel M2