91% of People Can't Identify All of These Power Tools! Can You?
22.What power tool is this?
Correct Incorrect Soldering involves permanently joining two or more metal items by melting and flowing a metal alloy called solder (usually a mix of tin and copper) into the joints between them, akin to using glue for metal. Soldering irons are commonly used to attach metal components onto circuit boards in electronics, as well as for other applications requiring metal joining.