Improves wetting: Flux helps molten solder flow smoothly (or “wet”) across the surfaces, promoting even coverage and a strong metallurgical bond.

Tips are critical. Large chisel tips work for desoldering, cone tips are the lowest common denominator, but fixing anything on the micro scale is easier with the right tip. For instance, a knife tip ...

Typical soldering tips have a copper core, plated with iron. The copper allows heat transfer, and the iron plating provides durability. Soldering is a joining process involving a filler metal that is ...