The device has a right-angled shaft pivotably supported on sides of a flat path in a housing. The shaft is formed with die holder elements (19) i.e. thread screws, as square profile shafts (17), where a stripping tool (20) is fastened to the die holder elements. The die holder elements are arranged in drillings (21) by the square profile shafts. A thread shaft (25) of each die holder element is longer than the cross section of each square profile shaft. The stripping tool is provided at an end of the drillings.