Siemens SINUMERIK 840D sl Operating Manual page 530

Tool management
11.4 Tool dimensioning
Figure 11-11 3D tool type with an example of a ballhead cutter (Type 111)
Figure 11-12 3D tool with an example of an end mill with corner rounding (Type 121)
530
Operating Manual, 03/2013, 6FC5398-7CP40-3BA1
Milling