This is a simple functional 3D printable quick release ⅜” ratchet. This ratchet can spined and and works in both directions. Please note you will need to buy some hardware ( two ½” 4-40 screws, one 1” 4-40 screw, one bb, two springs, one 12D 4mm nail ) for details on how to build this project and the required accessories needed visit https://3dprojectsfortomorrow.com/mechanical-inst-page-3 or review the video and pictures.