Use this centering die set with your Swanstrom heart-shape cutters to make perfectly centered heart-shaped washer components.
Simply cut a hole in your sheet with a punch the size of your desired inner ring diameter. Then move the metal to the larger punch size and use the appropriate centering die to center the metal. Then clamp the metal securely and punch a hole with the punch size of your desired outside ring size. Simple and effective! (Die sizes correspond to the largest three cutter sizes in the Swanstrom heart cutters set.)
Set includes three die sizes: