Small square profile key for utility box (6mm each side)

I need to open a utility box with fuses or electric meters very often and I was missing the key for opening it. Usually the keys are too large to include them on your “daily” key set, so I designed my own which can be easily included.

Each side of the square profile is 6mm, which fits perfectly to Hobes locks.

Print in PETG with 100% infill.