I have a Mayhew 66000 Hollow Punch Set available. If anyone is interested in this set (pictured below), I have one available. It has interchangeable cutters for hole sizes:
1/8", 3/16", 1/4", 5/16, 3/8", 7/16, 1/2", 9/16", 5/8", 3/4", 7/8", 1", 1 1/6", 1 1/8", 1 3/16.
These cutters are nice and sharp. I have used my personal set for 6 years and have yet to have to sharpen one bit.
I have been seeing these sets sell for $160-$200. I personally bought this set for $100 and would like to get that back. These are high quality punches and are in brand new condition. The case is a little scratched, but the cutters are immaculate.
Please let me know if you are interested.