Credit card sized stainless steel fillet gauge tool

It's a simple tool for designers to measure radius of an object with different sizes from 1 mm to 15 mm. It's a usefull tool to measure round cornes that you have difficulties to measure with vernier caliper.

What inspired you to make this project?:
When I was watching Noe Ruiz from Adafruit's Layer by Layer, in which he was designing a case for the Apple TV remote. And when he was trying to measure the fillet he couldn't get an exact measure so he had to guess. He was having difficulies with vernier caliper. After I designed this I realized that it's not the first, but it's very simple and easy to use compare to others.