What can i say this is a simple and common Allen wrench to add to your tool kit! It's also necessary to build the Fractal Wingman. You might be able to find these tools cheaper on amazon or locally, but I wanted to make one available here!
This picture is just here so i can flex my epic scale again.
I know you don't need to know the weight of an allen wrench down to the ten thousanth of a gram.