Metcal soldering iron tip effectively welds 1、 Joint quality of solder joints Transmitting precise thermal energy to ensure solder bonding without damaging the PCB coating. 2、 Output The welding speed refers to the rapid completion of welding points in the factory without damage caused by poor metal compounds or the integrity of PCB plating. 3、 Consistency (or repeatability) of the process The successful process is to produce high-quality, consistent and intact welding.