Unique characteristics of isotropic graphite - high bending and crushing strength and mechanical treatment easiness causes this kind of graphite is used as material for electrodes for spark machining (EDM). EDM is a new technique of making precise tools and models in hard and infusible materials. Offered graphite from Tokai Carbon Europe shortens hollowing process and affects the quality of hollowed surface finish. Wide range of classes of offered graphite (with regard for hardness and graining) enables obtaining desired quality of surface.