Tiny utility knife keychain

This tiny utility knife is ideal EDC because of its sliding mechanism, replaceable blades and size of normal key.
I tried to buy several different knives on my keys but each had its problems. Dull, nonhardened blades, big size, hard to open is just a few of them.

So I designed this sliding knife, that is really slim and small, has replaceable blades and needs only 3,5 g of filament. This makes it a great tool to always have with you when you need to open a box, cut some rope or get to some hard to reach spots on your 3D prints.

Not gonna lie it took me several tries, different tolerancing and micro adjustments to get to the point of working how I imagined. So if you have some suggestions to improve it please let me know.

If you like this model I would highly appreciate if you would visit my Printables page (https://www.printables.com/model/1176925-tiny-utility-knife-keychain) and download the models from there and add a like so I can at least get some free filament from my models