Summary

Hex key handles with sizes ranging from 1.5mm to 4mm for 3D printers

Made in Fusion 360, the "hex" parameter can be changed for other sizes as well

If tolerances are too loose or too tight, the 0.3mm offset in the photos can be adjusted on your needs

(I recommend ranging from 0.2mm on the bigger keys and 0.3mm on the smaller ones)