Drill through anything (conductive) with Electrical Discharge Machining

I show how to build an EDM drilling machine, describe how it works, and where to buy parts. Source for the arc generator: BaxEDM YouTube channel: I used the Kflop, Kanalog, and Kstep from OpenBuilds CNC machine: EDM hollow drill rods: EDM drill head: EDM drill head seals: Airless paint sprayer: Water filter: Cartridges are cheap, similar to this: