A pincer is a device with a pair of levers that act to concentrate force on a point. Mechanical Pincers are hand tools used in many situations where a mechanical advantage is required to pinch, cut or Biological Many insects possess pincers to assist carrying loads, for defense from other creatures, or to attack prey. The pincers are usually part of the creature's mandible, and often venom or acid can be injected during a pincer strike. Some arthropods such as crabs, lobsters and scorpions posse… (More on Pincer)