I have read how to carry your vape stuff when flying, but haven’t come across carrying rebuilding tools/kits. I have the v3 of CoilMaster and will be flying with only carry-ons. Is the kit allowed by TSA in carry-ons?
Anything that is sharp or pointy needs to be checked. If it looks like it can kill, injure or even be used to possibly assemble something to cause problems, check it.