Service Key TT for 16.5mm Neoperl Aerators

I got tired of using the clunky tool for many different sizes of the Neoperl aerators. So I made my own for the size I need modeled after the original tool.The wall strenght is 2mm instead of 1mm of the original tool to give it more stability. This does not impede the functionality at all in my experience.
Printed in ABS for maximum strength, so I can also remove slightly stuck aerators. but should work in PLA just as well.
Constructed in Tinkercad (it's a remix of my own design of the bigger, TJ-Key). The Model can be found at https://www.tinkercad.com/things/crwWklBWKd6-servicekeytt165-aerator-neoperl
 
I'm very interested in your experience with this model.

I've derived this from my own 18.5mm key and changed it to fit the 16.5mm TT faucet aerators.