h CWhCW AH7025 AH8005BX360 KS05F No symbol GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingEndmillDrilling ToolTechnical Reference STR Profiling and undercutting RE 1 7˚ INSL Ref. P SteelMStainlessKCast iron 2 N Non-ferrous S Superalloys : First choice H Hard materials : Second choice Coated Uncoated Designation SeatsizeCW±0.05 RE INSL h 3 STR3-150 3 3 1.5    20 5 STR4-200 4 4 2    20 5 STR5-250 5 5 2.5    25 5.5 STR6-300 6 6 3    25 5.5 䖃 : Line up 4 SGN External grooving of hardened steel RE 5 7˚ INSL Ref. P SteelMStainlessKCast iron 6 N Non-ferrous S Superalloys : First choice H Hard materials : Second choice CBN Edge prep. Designation SeatsizeCW±0.025 RESGN200-020220.2 INSL h S H205 7 SGN200-020-S 2 2 0.2  20 5 SGN200-020-H 2 2 0.2  20 5 SGN300-020 3 3 0.2  20 5 SGN300-020-S 3 3 0.2  20 5 SGN300-020-H 3 3 0.2 SGN400-020440.2SGN400-020-S440.2 20 5205205 8 SGN400-020-H 4 4 0.2  20 5 SGN500-020-S 5 5 0.2  25 5.5 SGN500-020-H 5 5 0.2  25 5.5 䖃 : Line up 9 Reference pages: Toolholders → 6-12 - 6-16, Standard cutting conditions → 6-26 6-25