This is most likely the answer. I purchased this in order to give it a shot. But forever reason it scares the hell out of me. The circles range from 1 inch to 2 inches. There are roughly 50 to cut, and they increment linearly by about 1/32.
Awesome. I Used this to cut the holes to fit the k cups exactly where I wanted them to sit. I wanted them to sit a little higher so I can easily grab them.
Mibro 460271 Circle Hole Cutter https://www.amazon.com/dp/B001C00ZRK/ref=cm_sw_r_cp_api_9sRxybS7GRE4H
you jest but, https://www.amazon.com/MIBRO-460271-Adjustable-Circle-Cutter/dp/B001C00ZRK
...it should work fine.