3d printed hex bit holder

I bought a lot of high quality TORX / ASSY bits off ebay and needed small and durable bit holders to take sets of them with me.
https://www.thingiverse.com/thing:218...

I am showing some commercial bit holder designs and the final design that i 3d printed and shared on Thingiverse with you.

My problem with other bitholder designs on Thingiverse was that they were either too stiff, or that bits kept falling off. Most commercial designs don't have these problems, but have a complicated full enclosure with live hinges that break too easily.

I fixed these shortcomings by using several design features:
seperate 'springy' clamps to hold each bit
a rotating clip that secures all bits from falling off, even when this thing is seriously rocked.
the hinges are made of two sping-loaded M4 screws