Jewellers fabricate and repair various jewelry articles. They create models from wax or metal, ready for the lost wax casting process. They may undertake the casting process (place wax model in casting ring, create moulds, pour molten metal into mould, or operate centrifugal casting machine to cast article.) Jewellers also cut, saw, file, and solder pieces of jewelry together, using a soldering torch, carving tools and handtools and polish the article.