An air hammer is a pneumatic tool used for heavy-duty applications such as chiseling, demolition, and metalworking. Powered by compressed air, it operates with a rapid hammering action that delivers high-impact force. The tool typically features a variety of interchangeable chisel attachments for different tasks, including cutting, shaping, and removing material. It is commonly used in automotive repair, construction, and metal fabrication to break apart rusted or welded parts, or to create precise cuts and indentations. Its powerful impact and durability make it ideal for tough jobs, while its ergonomic design helps reduce user fatigue during extended use.