The Sievert Psi 3380 Portable Soldering Iron made from high quality titanium and aluminium and powered by a single disposable gas cartridge. It is flexible and ideal for many applications. The burner incorporates an effective windshield which totally encases the flame. It has piezo ignition, and the precise valve in the handle makes it easy to obtain the right heat for the copper bit. The ergonomic handle is comfortable to use. Supplied with a copper bit and 2 replacement gas cartridges. Work Time: 60 - 90mins with one cartridge.