What drill holes are used to break the screw?
The metal, its principle is to discharge at the moment, a sharp change of arc temperature and with pressure, so that the metal material of the point immediately melted, gasification, splashed liquid and explosive, condensed into solid particles is the working fluid. At this time, the metal surface is etched into a pit, so EDM can be easily processed on any metal workpiece, so it is convenient and quick.
If the screw is broken and the drilling is not good, it is recommended to solve the problem with edm. A six or a slot is machined at the broken screw and then the screw is broken inside with a six square wrench or screwdriver. The electrode size is different, can process different sizes of broken screws, M3-M50 can.
