Coin Ring Punch Cards
thingiverse
People use a quarter punch card with a punch hole that's exactly half an inch across. They also use a dollar coin punch card featuring a five-eighth-inch diameter punch hole. Both of these cards are designed specifically for a die punch set.
Download Model from thingiverse
With this file you will be able to print Coin Ring Punch Cards with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Coin Ring Punch Cards.