Pepetools new center positioning dies are made to match perfectly with the new Pepetools 196.10a Disc cutter. Punch range-3/16" to 1" for Pepetools disc cutters. These punches allow you to make perfect washers using a disc cutter. All you need to do is cut a hole into a sheet of your material, then take that material and move it up to the next size hole. Use the corresponding center positioning die to locate the material in the center, then use the correct punch to create your perfectly concentric washer. These center positioning dies can be used with other disc cutters, but check the size before purchasing.