PENCIL-SHAPED Flame: Torch produces a 1/2-inch wide pencil flame for pinpoint heating; widely used for small diameter soldering, light welding, metal works, plumbing, woodworking, heat treating, and brazing copper pipes; also used as a fire starter, charcoal/fire pit lighting, searing meat, crafts, and hobbies. FLAME ADJUSTMENT KNOB: Flame control valve easily adjusts the flame size and extinguishes when finished SOLID BRASS CONSTRUCTION for durability and better performance SECURE CGA600 CONNECTION: Flexible with popular fuel gases - standard 1lb Propane cylinders, MAPP, and MAP-PRO MANUAL START IGNITION