It also has a 6,3mm square hole at the back to attach it to a cordless drill for faster use.
It is for screw heads with diameter 16,5mm, apparently Scenic have a smaller head.
For Clio2 and probably some more.
Technical
Just print and use (PLA is not very strong, Polyamide would be better if your screws are a bit hard to remove.
Original SolidWorks file attached.