Key Smart - My Swiss-knife key holder ver. 3.0

This is a print version / laser cut version of Key smart, a Swiss Army Knife like Key holder
You will need to make 2 piece of the plate to hold all the keys in the middle
And you will need to bind them together by a pair of binding screw which can be easily buy from a stationary store
For different thickness of key, you can make the 0.5mm thick washer to adjust
You can buy longer binding screws to hold more keys if you want :)