Express 290 Koro Autogen/Oxygen Torch, equipped with a 160-L nozzle. Special features: new acetylene torch designed for the automotive industry, specifically developed for installers and refrigeration technicians. However, the Express Koro torch is also perfectly suited for applications such as bodywork, boiler construction, and metalworking. This powerful welding torch operates with a mixture of oxygen and acetylene supplied from two separate cylinders, allowing it to reach very high temperatures of approximately 3100 °C! Depending on the nozzle used, it can be employed for soldering copper pipes with a diameter of 8 to 42 mm, as well as for steel and galvanized steel up to a thickness of 5 mm.