Self Igniting Swirl Combustion Torch Tips. The New Twister® 2 tips combine easy start electric ignition with the popular Twister® swirl combustion technology to produce a faster igniting and more efficient torch tip. Use with acetylene. Tube Capacity: Soft Solder 1" - 2", Silver Solder 1/2" - 1". Tip End, Part # T2A-8TE.