This max heat torch from Bernzomatic® has an adjustable ultra-swirl flame, instant on/off ignition and flame lock for continuous use. Pressure regulated for consistent performance when inverted. Compatible with MAP-Pro® cylinder and Propane fuels (sold separately). Works best for large diameter soldering, light brazing, woodworking and cooking. Bernzomatic® tools empower professional tradesman, DIYers, artisans, adventurers and creatives with the tools and inspiration they need to take on new projects and redefine what they can achieve.