Graphite Machining - ErodexErodex (UK) Limited has for many years has been at the forefront of the E.D.M. industry due to the unsurpassed quality of its graphites and EDM graphites. . Graphite Machining. Erodex offers a complete range of graphite electrode materials from stock, as well as state-of-the-art electrode manufacturing services.graphite milling factory uk,Erodex (UK) LtdErodex UK provides a vast range of EDM supplies such as EDM wire and wear parts, as well as graphites, graphite machining and more.