A wrench is used to apply what to a fastener?
Detailed Explanation
Wrenches are mechanical tools that use leverage to apply torque, or twisting force, to a fastener, such as a nut or bolt. The leverage is created by the length of the wrench handle, which acts as a lever to amplify the force applied to the fastener. The longer the wrench handle, the more leverage it provides, and the more torque can be applied to the fastener.
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