I have been toying with the idea of making a carbon ring "cutter" by using a brass rod and turning the end down to 1 or 2 thou less than the neck diameter. Then filing notches around on the corner so they would act as cutters. Slip it in and turn by hand. The geometry of the notches might require some experimentation. What do you think?
Might be able to just tap the rod to break the ring. ??
Might be able to just tap the rod to break the ring. ??
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