Tool to clip on the Fan and Hotend, it holds the Hotend securely in Place when the Thumbscrews are loosened. So the Cables and Connectors should not be stressed or stretchened when unscrewing the Nozzle when you want to change a Nozzle.
with a little Sanding the Force to clip in can be adjusted. When Unscrewing the Nozzle the Hotend should be held with an adjustable Wrench.
The author marked this model as their own original creation.