Welding or soldering allows you to attach two parts metal jewelry together with heat and usually solder. A soldering torch is a handy watch tool for any jeweler or watchmaker who is experienced in jewelry or watch repair. Torches, combined with solder allow watchmakers to make small adjustments and repairs within a watch cases, watch clasps, watch lugs, and more. Remember to take care if you are working on timepieces with low melt materials like plastics, leathers and also gemstones that are vulnerable to heat. Before soldering a watch or watch case, it is important that you know exactly what you are doing, as applying high heat to a watch can be very dangerous.