We use three different sizes of professional jewelers' torches. All of them are fueled by natural gas and oxygen. The largest torch is used for casting. The medium sized torch is used to solder and anneal metal. The smallest torch is used on pieces that are more delicate and need a smaller, more precise flame tip.
Our laser welder allows us to join pieces of metal without using a flame. We are able to make a weld as small as a quarter millimeter in diameter, while holding the metal in our hands. The laser makes it possible to repair jewelry containing heat-sensitive gemstones without having to remove the gemstones. We can rebuild metal prongs with gold and platinum without using solder for the strongest repair possible. We LOVE our laser!