OMT² - Hex Precision Tests for Bit Holders

Creating tools that are meant to fit standard bit holders requires a very high precision.
To help you figuring out how precise is your printer (or your settings), or which flavour of that OMT² bit you like so much to take ...here are a few tests for you.

-----

This is just a print test. To know more about the project, visit : http://www.thingiverse.com/thing:1381028

-----
*** Tight (No tolerance) ***

> This test is exactly 1/4" (or 6.35mm).
> Depending on your printer's precision, it will probably be too tight to fit any bit holder

*** Basic (tolerance = 0.1mm)***

> This test is slightly smaller than 1/4". It's exactly 6.25mm.
> It should be the right size to use with the OMT² handles, as well as standard bit holders.

*** Loose (tolerance = 0.2mm)***

> This test is smaller than 1/4". It's exactly 6.15mm.
> In case the basic version is still too tight, this one is the way to go.

-----------------------

**Notes :**
> Print and try, there is no sec