The most important and primary benefits of all of CNC machine tools, is to allow automation. The intervention of the operator during the manufacturing of workpieces by using a CNC machine is removed to minimize or completely. Most CNC machine tools are able to work without any outside interference during part of processing performed, the Buddha, the CNC, reducing operator error, minimization of errors caused by human error, processing time previously and provides benefits such as full as can be determined. The second major benefit of CNC technology is substantially accurate and continuous evolution of the same name parts. To believe that today's CNC machine tools repeat-position power and have my sensitivity. After this, the program is verified, two, ten, or one thousand is part provides the ability to obtain the same precision and consistency.