Hakko T18-D24 soldering station replacement tip for models: FX888D-23BY, FX888-23BY, 936-12, -26-12. Solder tip shape 2.4D, chisel tip 2.4mm. Type: Replacement tip for FX888D-23BY/926/936 Size/Dimensions: Chisel tip 2.4mm Application: For medium to large work