Electrical discharge machining (EDM)  is a manufacturing process whereby a desired shape is obtained by using electrical discharges . Material is removed from the work piece by a series of rapidly recurring current discharges between two electrodes separated by a liquid and subject to an electric voltage. Our Makino U3 and U3 H.E.A.T. (High Energy Applied Technology) configuration contains enhancements to the flushing and filtration system that dramatically increase cutting speed, especially in poor flush applications, while maintaining part straightness and accuracy.