Hurst cutters are more like big chompers that bite through metal and other vehicle materials. If you've ever seen this device in action, you know that it can snap a car-door post like a twig in a few seconds. As the pressure comes down on the door post, the cutters just snap right through it. Instead of arms like the jaws of life, the cutter has curved, blades that come to a point. The blades of the cutter come together around a structure, such as a car roof, and pinch through it with up to 70,000 pounds of cutting force.