A socket wrench is a hand tool used to tighten or loosen nuts and bolts. It has a mechanism that allows the user to turn the wrench in one direction without having to remove and reposition it, making work faster and more efficient. The wrench has a detachable socket that fits over the fastener and comes in different sizes to fit various nuts or bolts. Socket wrenches are commonly used in mechanical and automotive repairs due to their ease of use and ability to reach tight spaces.

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