Jam-bar
thingiverse
Use this when you need to keep a bolt from spinning during removal. This tool was created with Tinkercad. Modify it online at https://www.tinkercad.com/things/dp8g5f6h9m4.
Download Model from thingiverse
With this file you will be able to print Jam-bar with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Jam-bar.