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Switzerland. Geneva. Paquis neighborhood. Car accident on the Chantepoulet street. Firefighters with helmets and yellow protective clothing work on a vehicle extrication, which is the process of removing a vehicle from around a person who has been involved in a motor vehicle accident, when conventional means of exit are impossible or inadvisable. A delicate approach is needed to minimize injury to the victim during the extrication. This operation is typically accomplished by using hydraulic tools, such as a cutter. The cutter is a hydraulic tool which is designed to cut through metal - a hydraulically powered shears. It is often called a crab-cutter, owing to the shape and configuration of its blades. Sometimes specified as to its capacity to cut a solid circular steel bar, these are most commonly used to cut through a vehicle's structure in an extraction operation. Cutter blades are replaceable, and blade development progresses as vehicle technology progresses in order to be able to cope with the new car protection technology. 21.03.12 © 2012 Didier Ruef..