EDM sinker drill for small parts

Electric discharge machining, or EDM for short is a process to electrically remove metal from a work piece. This is especially useful to machine very hard metals like tool steel or carbide steel. This is a small variant using magnetic reflex (like an old fashioned ringning bell) to electrically poke a metal part and slowly erode the metal. I plan to use this to remove broken taps. It is a work in progress.