Screwdriver handle
thingiverse
If it doesn´t fit at first, use a hammer with a little bit of force :D and you can use glue if necessary.
Download Model from thingiverse
With this file you will be able to print Screwdriver handle 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 Screwdriver handle.