Port sockets
thingiverse
Here's the deal! This tiny key holder at compass is super convenient, so I'd figured mine was busted - no biggie. That's when I made up my mind to custom draw one just right. It comes with sockets for all your needs from 4mm to a whoppin' 13mm plus an extra special adapter thrown in - part of the deal!
Download Model from thingiverse
With this file you will be able to print Port sockets 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 Port sockets.