Engineering Design CNC Parts - Milling and Turning
Bespoke CNC milled and turned parts 
Another stable of engineering design, since most other manufacturing processes rely on a tool, negative or postive to be created from a CNC machining operation. Tooling sets for example are nearly always CNC machined from the part design to capture design intent with geometry and tolerance requirements. It's also the most useful method of production for bespoke designs requiring lower volumes. Sometimes, parts can only be made by CNC (Computer Numerical Control) methods due to intricacy, specifc geometric constraints, volume, tolerances or material considerations. Most parts also require some sort of CNC machining opertions to finish, such as bore holes to tolerances for engineering hole and shaft fits, threads and caputring the final design intent.