TX-504 - Self Igniting Hand Torch for Brazing & SolderingTurboTorch TX 504 Self Igniting Hand Torch for Brazing & Soldering TurboTorch has developed a new series of hand torches that also feature Extreme Swirl Technology. The new Extreme series generates more heat than other hand torches for faster brazing times and less gas consumption. All Extreme series hand torches and tips feature TurboTorch swirl combustion. Higher heat levels, in a short amount of time, enable the pros to quickly complete the job.