BERNZOMATIC® High intensity torch head made of cast aluminium body construction for durability. Trigger on/off for easy ignition. Ultra swirl high intensity flame with maximum heat output. Run-lock button keeps torch lit for continuous use. Fracture groove enhances safety in case torch is dropped. Adjustable flame control knob easily sizes flame for different applications. Pressure regulated for consistent performance when inverted or used in adverse weather conditions. Ideal for soldering large copper pipes, brazing and heat treating applications.