Vibra-cutters are whip like cables which vibrate at hypersonic speeds, so fast that should the cable come in contact with a surface, the agitation will be powerful enough to break apart the molecular structure of that object, effectively severing it in half. They are seen in being used as a menacing weapon by female humanoid cyborgs in both the Appleseed Hypernotes and 2004 movie. While the vibra-cutters are frequently used as weapons, it's suggested that they were originally designed as an industrial tool, by nation/conglomerate Poseidon.