PURPOSE: To facilitate forming in different dimensions without the need of attaching, removing and exchanging metallic dies.

CONSTITUTION: An intermediate punch member 11 fixedly connected to the body 7 of a metallic die that is connected to a press driving source. To the intermediate punch member 11, a cylindrical intermediate punch guide member 17 enclosing the outer periphery of the member 11 is connected movably in the direction of the axial line and by a prescribed quantity only. Outside the intermediate punch guide member 17, a punch member supporting drum 25 is rotatably provided, and plural pieces of punch members 29 are provided in the punch member supporting drum 25 so as to be used alternatively. Also, an elastic member 71 for reverse pushing is attached to a die holder 67. Plural die members 75 are provided in a circular die member supporting drum 73 enclosing the die holder 67, and a reverse pushing counter member 77 is provided inside each die member 75. Through the rotational displacement of the die member supporting drum 63, the plural die members 75 are alternatively used.