Crowbar
A crowbar is a lever consisting of a metal bar with a single curved end and flattened points, used to force two objects apart or gain mechanical advantage in lifting; often the curved end has a notch for removing nails. Crowbars have a variety of uses, with specific types of crowbar being more suited to certain tasks.
The design can be used as any of the three lever classes. The curved end is usually used as a first-class lever, and the flat end as a second-class lever.
Designs made from thick flat steel bar are often referred to as utility bars.
Crowbars are occasionally used by criminals as a tool for forcible entry or as an offensive weapon. The use of a crowbar as a weapon is also common in fictional media, and it is considered an iconic part of the Half-Life franchise.
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