The UT-100SI is a Soldering Iron or Heat Tool with standard with soldering tip, heat tip, spanner wrench, open end wrench, shrink attachment and protective cap, lighter in weight than competitive models, making it easy to hold and use over extended periods of time, built-in fuel filter for consistent fuel ignition, adjustable temperature up to 1200°F, built-in window indicates fuel level, dual function Soldering Iron and heat tool.