This is a finger-braced self-defense knife I designed for a colleague who was accosted. Meant for self-defense only. Don't be a victim! Use common sense, do not take where such items are prohibited. By downloading this you accept any liability and responsibility. Can be used a single piece or a pair, see photos for reference. Print with rigid filament like PLA+, PLA 2.0, ASA, CF-PLA etc. I recommend printing with 4 walls with 3 top & bottom layers, 50% triangular infill, dried to 10 - 15% moisture.

Don't be stupid - these are for self-defense only. If you try to threaten someone with these and they know what they're doing, you can easily be disarmed and you will be wearing them where the sun don't shine. Be nice, love thy neighbor. This is not something that you show off - you only use if absolutely necessary.

Notice the small chamfer at the bottom - if you eliminate this the print will lose rigidity and the edges will break easily.

Dry your filament, eat your vegetables, don't do drugs.