Features coils of brass, which are softer than the tip plating yet harder than the oxidation that forms on a soldering irons tip. To clean, simply plunge (stab) the iron tip into the coils. Can be used as a replacement for the dedicated HAKKO 599B wire holder or in the FX-888 soldering station tip holder (one ball is enough for two refills), etc. Genuine HAKKO product. Made and Imported from Japan.
