This is a holder for Metabo BS Quick Screwdriver for mounting at a top of a shelf or ceiling.
Its very sturdy and fits tight.
This is a contribution to Zack's gridfinity project: https://youtu.be/ra_9zU-mnl8
I have included the Fusion 360 file, f3d, if you want to modify it.
The author marked this model as their own original creation.