Drill Bit Sharpener Manual

I couldn't print the original one ( http://www.thingiverse.com/thing:2006453 looks good but it's not manifold) and I made this simple tool to sharpen manually like at the end of this guide:
http://www.instructables.com/id/Sharpen-Your-Drill-Bits/step16

2 files: 135° and 118°