12 mm wrench
thingiverse
A customized version of the design can be found at http://www.thingiverse.com/apps/customizer/run?thing_id=82067. To create this, set the tool height to 3.5, message depth to 12mm, include a holding cap, set the tool length to 10, use a layer height of 0.1mm and upload the 'write/Letters.dxf' font file. The nut size is also 12mm in this design.
Download Model from thingiverse
With this file you will be able to print 12 mm wrench 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 12 mm wrench.