Print-in-place ratchet tool for use with allen keys. You can modify the center of the Inner.stl file to make this work for any size allen key (larger keys of course require more tensile strength of the material) Finger Ratchet v14.stl - A print in place ratchet for use with 5mm allen keys Ratchet w Handle v16.stl - A print in place ratchet for use with 5mm allen keys Double Ratchet v18.stl - A print in place double ratchet for use with 5mm and 2.5mm allen keys Outer.stl - The outer piece (combine with Inner.stl) for adding to your allen key ratchet own handle design Inner.stl - The inner piece (combine with Outer.stl) for adding to your allen key ratchet own handle design This design was printed using the co-polyester, nGen from colorfabb.  Printed on a lulzbot mini using the following settings: layer height: .1mm default print speed: 3000 mm/min xy movement speed: 4800 mm/min z axis speed: 1000 mm/min top solid layers: 3 bottom solid layers: 2 perimeter shells: 2 nozzle dia: .5 Check out my video of Ratchet w Handle in use