Customizable Double-Sided Mini Wrench

thingiverse

This is an adaptation of a customizable wrench by gr0b, https://www.thingiverse.com/thing:47842. In this version you can change the size of both sides of the wrench to be whatever you want. That being said the design doesn't work great when trying to make both sides very different, I would recommend staying within +/- 2 mm but it will work with whatever you put in. Might just look funky.