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Sockets hand tool are essential components in mechanical and DIY work. They attach to wrenches or ratchets, allowing for the tightening and loosening of nuts and bolts. Sockets come in various sizes (measured in inches or millimeters) to fit different fastener heads. They are durable, often made of chrome vanadium steel, ensuring reliability under pressure. Sockets are indispensable in automotive repair, construction, and household maintenance, providing versatility and efficiency in various tasks.