Specification :

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.
Hakko 599B Features:

* Cleans better than conventional sponges
* No water required
* Will not reduce the tip temperature
* Replacement cartridge for the 601 and 602 iron holders
* May be used as a portable tool holder and cleaner