Dụng Cụ Hỗ Trợ Sửa Ren Bu Lông M3, M4

So I have some M3 and M4 bolts that have slightly mangled threads, but otherwise still usable. I also have threading dies but it's practically impossible to use them without a proper vise. So I made this to help quide the bolt onto the die. M3 works quite fine, but I found that M4 might need more force and vise would be required anyways. Or make the base bigger for better grip.

But here's the model anyways. Printed in PLA for now.

Needs square M3 nut and M3 bolt for locking the die in place. Screw in the top and start screwing in the bolt.

OpenSCAD source: https://github.com/spegelius/3DModels/blob/master/Utilses/bolt_threading_helper.scad