Stylo graveur arc éléctriqueOur engraver pen by electric arc is a small electric machine as easy to handle as a pen, which allows to engrave, write and trace on most metals, without limit of hardness. The engraves obtained are black lines produced by burning metal. The peak of this machine can not stick on the metal : assembled on the mobile framework of an electromagnet, it is called back by getting up at every period of current.