Product details:

A torch designed for heavy-duty use including large diameter soldering, brazing, heat treating and light welding. The high intensity swirl flame provides maximum heat output for more efficient use and faster soldering times.Adjustable flame control knob for ease in switching between different applications
Adjustable flame control knob to easily size flame for different applications
Instant on/off trigger igniter with simple one-handed operation
Lock button keeps torch lit for finger-free use