Minimesser, Boxopener

A small knife (approx 43 x 15 mm) with a retractable blade. The blade extends only 4-5 mm.
To ensure the blade is properly retracted, a small recess must be ground into the blade for the carrier pin. Due to the blade's locking mechanism after insertion, movement might be a bit stiff... simply sand down the small locking ball on the slider a little.
Completely removing it is not recommended, to prevent the slider with the retracted blade from sliding out the back.