The REKORD 500 CNC machine uses CBN or diamond grinding wheels, to guarantee outstanding quality of finish and precision with short cycle times. The grinding can be performed using emulsion or neat oil coolant. The machine can be programmed and used by a non-skilled operator, the programming is very simple and digital, with data entry according to a guided menu that is easy to learn and provides support for the operator, displayed on a large display. Tooth rake and clearance angles, are freely and individually programmable, to obtain the most suitable tooth geometry for the material to be cut. The geometry and the tooth profile are calculated and automatically programmed by CNC according to the DIN standard, but if required, it is in any case extremely simple to modify the geometry of the tooth by the operator. The high pressure coolant system guarantees perfect cooling of the grinding, and the filtering systems with automatic controls guarantee depuration and efficiency of the coolant.