The double Spiga is a chain with a round section allows the finishing in its original forms and the flat or oval beatings. Together with the new proportion, is particularly suitable for a small, round chain without kinkings, providing smoother, lighter and easier production. The peculiar chain design can be linked together with components on high class jewellery. The endowment of the machine is completed by the chain lifting pliers and the chain moving hook in line, the chain density sensor, the electronic speed regulator with brake, the cutting unit, adjustable in height, the electronic wire tensioner and the LED lamp.