The Hakko 599B-02 is a replacement solder tip cleaning wire sponge. These sponges are hard enough to remove debris and some corrosion from the solder tips while being soft enough not to damage the tip. They help to remove oxides and excess solder to preserve tip life and enable clean, precise soldering.
Cleans better than conventional sponges
No water required
Will not reduce the tip temperature
Does not cause premature wear of soldering iron tips
No contamination risk compared to conventional tip tinners