The needle files from Harbor Freight come in a flimsy plastic case, and the tip ended up breaking off one of my files in it. I designed this case to better protect and store the files.
There are holes for up to 6 3x8mm magnets to act as a clasp.
This case was printed on my Prusa MK3S+ at 0.2mm layer height with Paramount 3D PLA.
The author hasn't provided the model origin yet.