Plastic card knife
grabcad
Intended to be placed inside a paper or plastic bag-like tote, this disposable plastic knife is intended for cutting the tape on shipping boxes. I would prefer to see this one made from either recycled plastic or a bio-degradable plastic. It could also be seen as a somewhat safer alternative to the snap-off style sliding boxcutters. (PS: this blade may be a bit too thick.)
Download Model from grabcad
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