Box cutter
An utility knife is a small special-purpose knife. Depending on what these are used for, these tools may not look like a knife. If it is used to cut cardboard boxes, it is called box cutter. These were first used to cut cardboard boxes, that is how they get their name. Utility knives are very common. Because of this, they have also been used as weapons. In this case, as a slashing-kind of weapon,. They were used opportunistically,that is: there were the best choice of the things that were around.
Gallery
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A modern safety cutter at top, with blunted tip blade and cutting guide/tape hook. At bottom, an older style simple plastic box cutter using standard straight edged blades.
OLFA segmented blade or "snap-off blade" utility knife
Inexpensive stamped steel and aluminum box cutter with disposable blade
