This is a remix of binderbailey52 ‘Wrench Holder’ which I really like but I wanted to add some magnets. So this one uses a 6x3mm where the wrench lays and 4x8mm on the bottom.
I've printed a ton of these holders, they really clean up my box and save room. those plastic snap on trays take up so much room, these really work great for a lot of different sizes