Using the parametric wrench by MBCook I found, that the open end of the wrench was a bit rough and changed the script a bit to get even edges there and to be able to use it in thingiverses customizer.
Unfortunately the customizer current is continue to show the uneven open end. Generating the script in OpenSCAD will result in even edges of the open end.
Category: Hand Tools
The author hasn't provided the model origin yet.