profile and finally combine both of them and choose the optimum manufacturing procedure for the die.This paper deals with the amelioration of performance of a brass extrusion die coming from Fitco S.A., brass and copper extrusion plant in Greece. The reasons of failure of the original die are briefly discussed after laboratory examination of more than 50 dies collected from the production. In the light of the above findings new candidate materials and designs were considered and new dies were produced and industrially tested.