Digital Code Rotary Switch with multiple switching functions are applicable to the machinetool`s operation panel for axis selection ,feed rate and override ,etc. This product is suitable for all kinds of NC processing machinery, NC automated machine, gauges. The knob pinion positioning, digital output, and the signal is stable and reliable. It is generally used for Numerical control panel`s mode transformation ,spindle override and feedrate override in the reliable control of CNC machine tools.