The most important and primary benefit offered by all CNC machine tools is their ability to facilitate automation. Using CNC machines minimizes or eliminates operator intervention during the manufacturing of workpieces. Most CNC machine tools operate without external intervention during part processing. This provides CNC machine owners with benefits such as reducing operator errors, minimizing human error, and allowing for precise and in-advance machining times. The second fundamental benefit of CNC technology is that workpieces are produced precisely and consistently to the same size. Today's CNC machine tools boast incredible repeatability and positioning accuracy. This allows two, ten, or even a thousand workpieces to be produced with the same precision and dimensional accuracy after program control