Abstract: A die for a tool set includes a punch and a die for mechanically joining metal sheets lying flat one on top of another by shaping. An anvil and die segments together form a cavity into which the joining is carried out. The die segments are supported in a slidable manner at an angle transversely, preferably orthogonally to the cavity axis H against a spring force. A casing sleeve surrounding the die segments is essentially rectangular in cross section, open at the top and can be attached to a base body. The die segments can be supported and guided in guide slots lying parallel opposite one another in the casing sleeve. Guide mechanisms project laterally on the die segments for positive engagement in the guide slots.

Abstract: A die for a tool set includes at least one punch and a die which defines a cavity for effecting joining. The die comprises an anvil opposite the punch. Die segments adjoin the said anvil and define the cavity in the circumferential direction. When the punch is being fed in the direction of the anvil, the segments execute a yielding movement transversely to the punch feed direction.