An torque wrench is a more specialized ratcheting socket wrench that used to apply a specific amount of torque to a fastener, such as a nut or bolt, ensuring it is tightened to the correct specification. This helps prevent damage from over-tightening or loosening from under-tightening, by using an internal mechanism that gives an audible sound when the correct torque setting has been reached or visual display of how tight a fastener is.
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