Siemens SINUMERIK 840D sl Operating Manual page 508

Tool management
12.4 Tool dimensioning
Figure 12-11 3D tool type with an example of a ballhead cutter (Type 111)
Figure 12-12 3D tool with an example of an end mill with corner rounding (Type 121)
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Operating Manual, 09/2011, 6FC5398-7CP40-2BA0
Milling