CWh CWh T9225KS05F T9125 AH120 GH730 NS9530 GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex GTFor turning A RE INSL B P SteelMStainless C K Cast iron N Non-ferrous S Superalloys : First choice H Hard materials : Second choiceCoatedCermet D Designation CW+00.1 RE INSL h GT30 3 0.4 z z z 10 3.5GT4040.4zzz104GT5050.4zzzzz124.5 E z: Line up F GE-AL For aluminium and non-ferrous metal G RE INSL P Steel H M Stainless K Cast iron N Non-ferrousSSuperalloysHHard materials : First choice: Second choice I Uncoated Designation CW+00.1 REGE20-AL20.2z INSL h103.5 J GE30-AL 3 0.2 z 10 3.5 GE40-AL 4 0.2 z 10 4 z: Line up K L M Reference pages: Toolholders → F188, Standard cutting conditions → F193 Tungaloy F191