| Flute He | lix (FHA) | Radial r | ake angle (GAMF) | | |
| 40° Helix Angle (Flute) | | 10° Radial Rake Angle (cutting) | | -6° Radial Rake Angle (cutting) |
| Unequal (Variable) Helix | | 20° Radial Rake Angle (cutting) | g 8° | 8° Radial Rake Angle (cutting) |
| l 30° | 30° Helix Angle (Flute) | | 15° Radial Rake Angle (cutting) | | 13° Radial Rake Angle (cutting) |
| | g 7° | 7° Radial Rake Angle (cutting) | | |
| Cutting | diameter tolerance class (TCDC) | Milling | Direction | | |
| h9 DC | h9 - Industry Standard Tool Tolerance Zone (based on diameter range) | | Plunging, Ramping, Side Cutting | | Side Cutting |
| | | Ramping, Side Cutting | | |
| Cut leng | th | | | | |
| Extra short | | Medium | | Extra long |
| Short | | Long | | |
| Mill Proi | file | | | | |
| General Purpose Cutter Type for Low to High Resistance Materials | | Coarse Pitch Asymmetrical Rounded Profile Chipbreaker | | Non-ferrous Cutter Type with Coarse Pitch Asymmetrical Rounded Profile Chipbreaker |
| FS | Semi-finishing Profile Chipbreaker | | Non-ferrous Cutter Type for Soft Malleable Ma- terials | | |
| Number l | of flutes | | | | |
| NOF 2 | Number of Flutes = 2 (teeth) | | Number of Flutes = 3 (differential pitch) | NOF 4= | Number of Flutes = 4 (differential pitch) |
| NOF 3 | Number of Flutes = 3 (teeth) | NOF 3-4 | Number of Flutes = 3-4 (teeth) | | Number of Flutes = 5 (teeth) |