This is a simple functional 3D printable reversible ½” ratchet. This ratchet can spined and and works in both directions. Please note you will need to buy some hardware ( three ½” 10-24 screws, two small 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 pictures.