Crowbar

About

A crowbar is a lever consisting of a metal bar with a single curved end and flattened points. It is used to force two objects apart or gain mechanical advantage in lifting. The curved end typically features a notch designed for removing nails. The tool's design allows it to function as any of the three lever classes. The curved end is usually used as a first-class lever, while the flat end serves as a second-class lever. Designs made from thick flat steel bar are often referred to as utility bars.