The Snap-on Butane Gas Soldering Iron Kit, No. YAKS41, is designed for soldering wires, electrical terminals, and heating shrink sleeve. It heats up quickly with a one-handed ignition switch, and a quick-release connector allows the iron and nickel-plated tips to be changed without waiting for them to cool. The multipurpose handle has an adjustable temperature knob in the back and two fuel gauge windows on either side to show when a refill is needed. A magnet integrated into the bottom of the tool makes it easy to place on nearby surfaces, and engaging the cap automatically shuts off the tool to prevent accidental contact.