Tool mechanics manufacture punching tools, casting and injection molds or devices for industrial series production and mechanical engineering, as well as precision mechanical or surgical instruments. For production, they usually use CNC-controlled machine tools, which they also program themselves. With the help of lathes, milling machines, grinding machines and drilling machines, they manufacture the individual parts of the often complex tools. In doing so, they precisely adhere to the dimensions specified in technical drawings. They assemble individual parts into finished tools and install them in production machines, e.g. in punching machines. They carry out test runs and check the finished products. The servicing and maintenance of tools and machines is also part of their job.