I put my cigar cutter in my checked bags because TSA people are the dumbest people on the planet with almost unlimited power. They lack reasoning and sensible problem solving skills. I have seen them confiscate a box of custom hand rolled flies used for fishing. Hmmmmm, I imagine the TSA agent had a Bass fishing trip coming up. Upon protesting that fish hooks as insignificant, he called the Marshal.
Here is the official statement from TSA:
https://www.tsa.gov/travel/security-.../cigar-cutters
Now I also travel with carry on four boxes of matches and a Bic lighter but I don’t care if they confiscate those although they never have.
Bottom line, only carry on what your willing to donate to TSA.