Welding on fittings, applying and repairing metal to edges and surfaces on jewelry and watches, fixing work, welding eyelets, closing pores, producing seams and much more is possible with the PUK 6. The PUK 6 also handles the welding of precious metals including silver, copper, bronze and all other weldable alloys as well as material thicknesses of less than 0.2 mm with ease