Fillet measurement tool

When I'm creating a 3D model based on real world shapes I tend to run into the problem that often don't exactly know which fillet in mm I should choose to get the same round corners as the example object. I found myself guessing the measurements and doing a lot of trial and error printing on the entire 3D model that I was designing, which often takes a lot of time to print! To avoid wasting time and material, I designed these little measurement tools that you can print once and use as reference to find out the exact fillet settings in mm.