Machine tool accessories and tools Machine tool accessories, spare parts and their supply capacity, tools, are very important for the production of CNC lathes and turning centers. When choosing a machine tool, careful consideration must be given to the fit of the tool and accessories. Turning center / Control System Manufacturers generally choose the same manufacturer's products, at least should choose the same manufacturer's control system, which brings great convenience to the maintenance work. Teaching units, because they need students to be knowledgeable, choose different systems, and equipped with various simulation software is a wise choice.