To be used for most applications, this tip provides dual functions:
A sharp end for fine soldering of electronic
components, small wiring (21-25 ga.), and other PCB
work.
A flat face for situations when more heat transfer is
required between the tip and larger parts, as in the
soldering and tinning of larger wires (18-20 ga.),
electrical components, small pieces of metal such as
alligator clips, etc.