Hand tools are simple devices used to perform tasks without the need for electricity or batteries. They are typically operated by hand and include items like hammers, screwdrivers, wrenches, and saws. These tools are essential for various activities, such as construction, woodworking, and home repairs. Hand tools come in many shapes and sizes, designed for specific functions. For example, a screwdriver is used to turn screws, while a hammer is used to drive nails into surfaces. Their portability and ease of use make them popular among both professionals and DIY enthusiasts.