A hammer is a hand tool used to drive nails, break apart objects, or shape materials. It typically consists of a heavy "head" attached to a long handle. The head is usually made of metal, while the handle can be made from wood, fiberglass, or steel. Hammers come in various types, including the common claw hammer, which has a forked end for removing nails, and the sledgehammer, which is used for heavy-duty tasks. Hammers are essential tools in construction, woodworking, and metalworking. They are often used alongside other tools, such as nails, screwdrivers, and saws, to complete various projects. Proper technique and safety precautions are important when using a hammer to prevent injury and ensure effective work.