Mini Keychain Blade

I needed a small utility blade to always have with me, but the existing ones I found use the big utility blades that makes the whole tool big and clunky. I wanted something as small as possible, so I designed this retractable knife that uses any shap of hobby blade, the ones you probably have a box of for your x-acto knife. 🙂 Some of the blades are longer than others though, so I've provided two sizes for the frame, a Mini and a Maxi, so choose which to print according to which blade you want to use. Assembly is simple: