Perfect For Brazing, Welding, Searing, And Soldering, The Flame King Propane Gas The Flame King YSNAX1-019 high intensity propane torch head is designed for professional Multi-Purpose welding and includes an instant on/off trigger ignition which provides easier lighting and increased fuel savings. The large, optimized swirl flame burns hotter for maximum heat output. The adjustable flame control allows for a more precise flame for various applications and the run Lock button keeps the torch lit for finger free use. Max heat torch for faster work times. CGA600 inlet - for use with 1 lb cylinders. Includes two interchangeable ends. Tip End Burner for precise and steady flame for fine welding and a Turbo Burner for increased efficiency using the flame vortex effect, for strong welding. Flame control valve easily sizes flame Instant on/off trigger igniter with simple one-handed operation Lock button keeps torch lit for finger-free use Compatible with 1 lb camping propane cylinders, such as Flame King 1 lb Refillable cylinder (not included)