utility knife

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：
1. m3 nut x 7
2. m3 x 12mm Socket Head Cap Screw x 7
3. Utility Knife Bladel, 18mm

if you are interested in a screw-free solution, please refer to ：
https://www.thingiverse.com/thing:6732285