MPG is a device to control machinery by generating electrical pulses in electronic systems under the control of a human operator manually. MPGs are used on computer numerically controlled (CNC) machine tools, on some microscopes, and on other devices that use precise component positioning. MPG full form is Manual Pulse Generator. MPG is also called a Handwheel in CNC. There is various kind of MPGs available in the market. Ex: Panel-Mounted Handwheel MPG, Wireless Handwheel MPG, and Handy Wired MPG