New developments generally require the production and testing of prototypes. However in many cases a component to be manufactured in series by punching cannot be tested one-to-one by a milled or turned part. With the aid of our in-house tool-making department we are able to manufacture - cost-favourably and promptly - tools for the production of prototypes and thereby to make available components for initial tests. Should - contrary to expectations - it occasionally not be possible to carry this out in-house, we work tog with two well-known manufacturers of prototypes, whose experience in manufacturing can be made use of in the subsequent designing of the tools.