CWhCWh AH7025BX360 GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex DGL A External, Parting-off RE B 7˚ INSL Ref. P Steel C M Stainless K Cast iron N Non-ferrousSSuperalloysHHard materials : First choice: Second choice D Coated Designation CW±0.05 RE INSL h DGL3-025 3 0.25 z 20 5 E DGL4-030 4 0.3 z 20 5 z: Line up F SGN External grooving of hardened steels RE G 7˚ INSL Ref. P Steel H M Stainless K Cast iron N Non-ferrousSSuperalloysHHard materials : First choice: Second choice I CBN Designation CW±0.025 RE INSL h SGN200-020 2 0.2 z 20 5 J SGN300-020 3 0.2 z 20 5 SGN400-020 4 0.2 z 20 5 z: Line up K L M Referent pages : Toolhoders → G101 - G102, Standard cutting conditions → G110 Tungaloy G109