This is a 3D modeling design for a utility knife. I focused on ergonomics for the handle and ease of blade replacement to create a highly practical and user-friendly design.
Parts required：
if you are interested in a screw-free solution, please refer to ：
https://www.thingiverse.com/thing:6732285
| utility_knife_bottom.stl | 61.1KB | |
| utility_knife_screw.stl | 460.2KB | |
| utility_knife_top.stl | 91.1KB | |
| utility_knife_v7.stl | 182.3KB |
