How to Choose the Correct End Mill

End Mills

Contour Peel Trochoidal

Z = number of teeth Fine Finishing Finishing Roughing Slot Milling Plunging Milling Milling Milling

end mill Z = 1

end mill Z = 2

end mill Z = 3

end mill * Z = 4/5

multi-flute cutter Z = 6-8

Ball Nose and Torus End Mills

ball nose end mill Z = 2

ball nose end mill Z = 4

*VariMill/VariMill GP Only

first choice

suitable with limitations

not recommended

Always select a tool with the shortest possible flute length whenever possible. This will increase the stability of the tool and give the best results.

When selecting an end mill, the following machining factors will affect your selection of the correct end mill for your application:

1. Tool overhang. 2. Coolant flow. 3. Machine and setup stability. 4. Machine power and torque. 5. Material to be machined. 6. Machine adaptor size (CV40, CV50, HSK63, etc.). 7. See Tool Reference Guides on pages N6–N15.

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