An air hammer is a handheld tool used for cutting, chipping, and shaping metal or other hard materials. It is powered by compressed air, which is delivered to the hammer through a hose connected to an air compressor. The hammer itself consists of a piston that rapidly moves back and forth, striking a chisel or other cutting tool attached to the end. This rapid motion creates a powerful impact that can quickly and easily remove material from a workpiece. Air hammers are commonly used in construction, automotive repair, and metalworking applications, where a high degree of precision and control is required. They are known for their speed, power, and versatility, and can be used for a wide range of tasks, including demolition, metal cutting, and surface preparation.