4 ms·I've read that commercial ceramic knives have metal embedded for that reason.by _flux 3y agoI've read that commercial ceramic knives have metal embedded for that reason.mmcgaha 3y agoThey very well may but shanks can be made out of anything. Keeping stabby or knife like things out of school is an impossible task.zirgs 3y agoNot all of them. Also the handle can be easily disassembled and all the metal parts can be removed.