PHEW CUTTER / cutter knife

‘Consideration for a slightest fear that you feel’
The existing cutter was inconsiderate of changing a blade. So we are afraid of a broken blade when the blade is obsolete.
For this reason, I propose a mechanical pencil-shaped cutter that can be replaced more safely.
If you hold the front part of the cutter and break it off, you can break the blade easily and safely.