Replacement Conical Soldering Tip for the Weller WLIBA4 Cordless Soldering Iron. Helps deliver heat to small areas, such as PCBs, and can also be used for general soldering tasks. Join wires (>18AWG), micro electronics, electronic hobby kits and crafts. Easy to change, use the lever to push the old tip off, then push the new tip on (turn off soldering iron and allow the tip to cool before removal). Specification: Size: 0.3mm | Weller Conical Soldering Tip 0.3mm For Wliba4