Application Guide P M K N S H Carbon Steels AlloyList No.Low10101018Med.10351045HighSteelsDie10654140Steels4340Stainless SteelsCastIron30040017-4 PHAluminumNickelAlloyTitaniumHardened Steels60617075CastingInconel6Al4V(30 HRC)~35HRC35-4545-5050-70HRCHRCHRC Screw Thread Insert Taps 126 128 Pipe Taps 308 318 12053 12054 328 108 108AL 118 108G S125 12006 12007 109 good best WWW.OSGTOOL.COM Illustrated Index/Application Guide 357