The scalpel purchase parts can be screwed out only through the knob and do not need to be touched by hands. And this is a design for people who kill fish at fish stalls, usually working with gloves.
Well, the old master only needs a kitchen knife. This is a fact. But technology can't stagnate just because traditional technology is enough. It just provides a new way for different people to choose.
This small blade is still very unsafe in this design.
666, I saw this product for the first time.