I first printed the design from Björn Heirman but had more screwdrivers than holes.

I redesigned the holder from scratsh but took the inspiration from the design of Björn https://makerworld.com/en/models/17318?from=search#profileId-16089

It now has place for 21 screwdrivers and can be placed over Skadis mounts.

(Also credits for the hooks: Skadis_Universal_Hook.stl credit to https://www.thingiverse.com/thing:2853257/files)

Mount the hooks first and then the holder.

Print it on its back with tree support for the holes.