Punch press for stamping work pieces

Punch press has a punch head and loading and advance unit at moving sections of a common tool. In a punch press, the punch head and the loading/advance system (28) are at sections (20,23) of the common tool (13) which move in relation to each other. The inner guide is bent and flexible, at least in a part-section between the loading/advance system, as a flexible hose with durable elasticity such as of plastics. The tool has at least two tool parts, which move against each other. The loading/advance unit (28) is at a first section (20) of the tool or tool part (13), and the punch head is fitted at a sliding section (23) with the first section (20). The first section (20) has a push function and the other section (23) acts as a retainer.