Profile: MWI, Inc. specializes in EDM graphite and supplies. We distribute EDM products such as graphite, wire, graphite custom ground blanks, metallics, electrode fabrication, and other accessories. Our brands include EC-Graphites™, and Poco Graphite™. EC-4 is a combination medium grain, median density and high strength isotropic graphite. It is a fine choice for large mold work with contoured detail. EC-12 is a multi-purpose fine grain isotropic graphite. EC-16 is an ultrafine grain, isotropic graphite. The high wear resistance makes EC-16 an ideal EDM graphite for high detail, fine finish EDMing. The machinability along with the strength of EC-16 also make it a choice graphite for thin electrodes.