Micro Foldable Box-Cutter Keychain remixed to add a M3 bolt and nut. Also decorate walls with square pattern and add a little hole to use as keychain.

You will need:

• 1 or 2 section of 9mm blade from classic box-cutter
• 1 m3 bolt 8 mm length and nut
• 1 key ring.

I printed mines without support.

Took square pattern from
https://www.thingiverse.com/thing:2991813

Thanks to both original designers for inspiration!