Reposition the tool and cut again.

Blistering is only a part of the entire blister process. After the blister is completed, there are cutting, packaging, and sometimes folding, heat sealing and other processes. Only when all is completed can it be called blister.

Punching and slitting is generally used to deal with blister burrs, which means using a knife to cut off the burrs of the blister-formed product under pressure.