... /M35 according to standard of GB,ASTM,DIN,JIS, High Speed Tool Steels Bars Steel Grade Chemical composition in % by wt (ladle analysis ... —18.5 Sizes: Cold Drawn Bars:Dia.1.5-18mm ; Hot Rolled Bars/coils : Dia. 15-80mm; Forged Bars: Dia.90 ... to be discussed Application :Driller, Topper,Cut Tools, Punch, Bearing High Speed Tool Steel Bars