Circle cutter is not a great tool after using it a while. To cut gasket
material I used a leather punch set to cut bolt holes and circle
cuttuer only to trace a line around abouth 1/32nd deep. I then use
surgical scissors to finish the cut.

I fully agree the way this cutter was shipped is not great for delicate
cuts at all. I would much rather have a 6" punch to do the hole job.