In practice, a critical part of die development is the configuration of the punches and dies. Not only the punches and dies are accommodated in the die holder, but also the other die elements. Modern forging dies are configured for various stations. This means additional forging, calibration, punching or trimming procedures are possible in the same operation (using four- or five-station die sets commonly found in operation today). Special dies, such as closing dies, can also be used. This significantly reduces production costs related to additional processing after the forging process.