113.874 | Leister 4mm (0.16 in) Round Screw-On Speed Welding Nozzle (without tacking tip)
Screw- on nozzles fit onto the Penweld and Welding Pen models.
And can be used with Triac/Diode with the screw-on "protection tube" and requires the Triac/Diode nozzle adapter 143.833.
To use with the Hot Jet S/Labor S nozzle use the adapter 143.831.