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TNC contouring controls from HEIDENHAIN for milling, drilling, boring machines and machining centers cover an entire range of applications: From the simple, compact TNC 320 3-axis control to the iTNC 530 (up to 18 axes plus spindle)— there's a HEIDENHAIN TNC control for nearly every application. The TNC 640 is a control for milling machines that are also capable of turning operations.