This grommet is based on the ratrig grommet design for the Vcore 4.0. This a completely new parametric model that allows the grommet to be resized for any diameter hole or panel thickness. It also provide much more wire protection that the original design.
The author remixed this model.
I used the overall concept of the ratrig grommet but redrew it and modified it to provide more protection for the wire passing through the panel. I also made the model parametric so that it could be adjusted to fit whatever hole size was needed.