Pliers are hand tools, designed primarily for gripping objects by using leverage. Pliers are designed for numerous purposes and require different jaw configurations to grip, turn, pull, or crimp a variety of things. They are a tool common to many dexterous trades and occupations. Many types of pliers also include jaws for cutting.
In technical terms, pliers are an instrument that convert a power grip, the curling of the fingers into the palm of the hand, into a precision grip, which directs the power of the hand's grip in a precise fashion on the object to be gripped. The handles are long relative to the shorter nose of the pliers. Therefore, they act as levers, concentrating and, in effect, amplifying the force in the hand's grip on a work piece.
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