HexHex, the hex key hexagon

Lately my hex keys got lost alot. I tend to keep them unsorted in a box and I tend to forget where that box is...
In most cases you need to just tighten that single M3, M4 or M5 Screw a bit... so I found it was about time to keep a set of hex keys at hand all the time. I must admit, I am a bit of a toolhead... but nevertheless find it handy to always have my keys around. So I came up with HexHex. This little hexagon shaped keychain lets you carry your hex keys with you wherever. 

Beside the printed parts, one M3x8 bolt and one M3 nut is required. You might probbably still have a spare or two if you built your Prusa printer yourself... Key-split-ring is optional. Also, you might want to shorten the hex keys as I did (if you cut of ~25-30mm, you can use my second design to make another allen wrench combo fob), in order to keep things small: I used a cutoff wheele on my grinder (and kept the keys cool by dipping them in water every two seconds of cutting, in order to not loose the hardening of the steele and wet sanded the edges after the cutoff). You can aswell keep the full lenght of the hex keys - this might actually be a nice add on for your toolbox. 

I printed this in PETG on a CoreOne without support, using the stock balanced 0.2mm setup. 
For assembly, you can clamp the two halfs carefully in a vice and then tighten the screw. 

Things to still add: 
Numbers that can be printed on multi material printers
Other sizes...

Update 1:
Made another Version to use the cut-off hex wrench pieces