It was originally designed by Impulse Ungineering for a set of different screwdrivers.
https://www.printables.com/model/892777-yet-another-driver-case/files 
I readjusted the size of this set of screwdrivers, because their dimensions were slightly different.
https://www.amazon.com/RCpow-Hex-Driver-Screwdriver-Multi-Axis/dp/B0DN1KX4WR
I admit that I don't know why they offer two options of 1.3 mm and 1.27 mm; the result measured by my caliper is the same for both. So I'm not necessarily recommending this set of screwdrivers.