A 'universal' wallmount screwdriverrack. Holds 21 screwdrivers.
Print at 100% for your average screwdrivers - 120% or larger for those few really big ones (if your print bed is large enough).
spacing between the holes at 100% is 2.5cm (so handles up to 5cm in diameter fit).

For best results, lay it top down in your slicing software since that's the biggest flat area.