Turning, Swiss or milling
Each process has limits, so the drawing decides the route. CNC turning and turn-mill suit larger diameters and short parts, with cross holes and flats by live tooling. Long, slender parts deflect away from the tool and go to Swiss-type turning.
Flats, pockets and multi-face features beyond live tooling go to CNC milling of prismatic parts. Shafts and pins whose diameter or roundness is tighter than turning holds are finished by cylindrical grinding of shafts and pins.


