Application Guide P M K N S H Carbon Steels AlloyList No.Low10101018Med.10351045High1065SteelsDie4140Steels4340Stainless SteelsCastIron30040017-4 PHAluminumNickelAlloyTitaniumHardened Steels60617075CastingInconel6Al4V(30 HRC)~35HRC35-4545-5050-70HRCHRCHRC Double End 442 444 422 423 424 442BN 444BN 422BN 423BN 424BN good best WWW.OSGTOOL.COM Illustrated Index/Application Guide 709