The PUK4c precision welder is a compact and versatile TIG impulse welder. Fine and minute welds are carried out under a 10x welding microscope (SM03 Microscope). Very close to laser welding, the PUK4c allows the exact positioning of small, stable spot-welds or welds in hard-to-get-to or deep lying positions. In contrast to soldering, the area of the work piece affected by heat is very small. So small in fact, that problem free welds adjacent to precious stones or pearls can be handled with ease.