Copper & Brass Single Channel Tubes are used primarily on small hole drilling machines with a larger I.D which gives better flushing, but causes faster electrode wear. Often used on thin work pieces with faster cut times due to more flushing..

Copper & Brass Multi Channel Tubes are used primarily on small hole drilling machines with a multi channel I.D. design which eliminates cores while being spun during machining..

Tellurium copper (Telco) performs the same as pure copper as an electrode material. It has a huge advantage, however, because of it"s high machinability rating: 90% (free cutting brass = 100%). Pure copper has a rating of 20%. Its high machability rating and fast WEDM speeds make it ideal for highly detailed, difficult to flush electrodes..

Electrolytic (or pure) Copper became the metallic electrode material of choice. This is because the combination of Copper and certain power supply settings enables low wear burning. Also, Copper is compatible with the polishing circuits of certain advanced power supplies..