Smith Little Torch #4 Twin Flame Heating Tip, 4300 BTU

Master Pipe Brazing with the Smith Twin Flame #4

If you use the Smith Little Torch for your daily work, the #4 Twin Flame Tip (12-1402-04) is an upgrade that will change the way you handle tubing and pipe repairs. We all know the frustration of trying to heat a copper pipe evenly with a single-point flame—you have to constantly rotate the torch to avoid cold spots or overheating one side. The Twin Flame tip solves this problem instantly by splitting the flame into two opposing jets. This design wraps the fire around the pipe, heating both sides simultaneously. The result? You reach brazing temperature in half the time, and your silver solder or brazing rod flows smoothly into the joint for a perfect seal every time.

This tip isn't just for jewelry; it packs a serious punch with 4,300 BTUs of heat output. That is enough thermal energy to easily braze copper pipes from 1/4 inch up to 5/8 inch diameter, making it an incredibly useful tool for HVAC technicians, plumbers, and metal sculptors working with tubular forms. Despite its power, it retains the lightweight and maneuverable feel of the Little Torch, allowing you to get into tight spaces inside appliances or under sinks where a full-sized oxy-acetylene torch would be too bulky and dangerous. It installs in seconds onto your existing Little Torch handle, so you can switch from a fine soldering tip to this heating tip without missing a beat.

Versatility is key in the shop or on the truck, and the Smith 12-1402-04 delivers. You don't need to worry about what gas is in your tanks—this tip runs on everything. Whether you prefer the intense heat of Acetylene or the availability of Propane, MAPP, Natural Gas, or Propylene, this tip handles it all. Just set your regulators to a steady 5 PSI for both oxygen and fuel, and you are ready to work. Stop struggling with uneven heat and cold joints. Upgrade your kit with the genuine Smith Twin Flame tip and experience the difference that professional-grade heat distribution makes on your projects.