The process of producing E. C. Aluminum round wires from slitted strip by using universal rolling mill with grooved rolls has been developed in America. The authors devised to use roller dies instead of the rolling mill for the purpose of producing the same wires from the slitted strip and succeeded in trial. It was found that more merits were observed in the drawing process with roller dies than in the rolling process. Furthermore, mechanics of drawing with roller dies, was checked by measuring the drawing force. The results obtained were as follows:(1) By using the combination of lip oval, and round passes, the wires were produced from the strip in rolling process without using universal mill.(2) By using Type A-51 roller-dies, having flat rollers for the first rollers and round rollers for the second rollers, wires were produced in nearly a half number of passes of that of ordinary caliber rolling.(3) Drawing force for roller dies was in good agreement with that estimated by the equations derived by A. Geleji.(4) The properties of E. C. Aluminum wires produced from the strip were almost the same as those of the wires drawn from hot rolled wire rods. However, the properties of the wires produced by drawing with roller dies were more excellent than those produced by caliber rolling.