An angle grinder is a versatile power tool used for cutting, grinding, and polishing various materials, including metal, stone, and concrete. It features a rotating disc that can be swapped out depending on the task, making it suitable for both professional and DIY projects. Angle grinders are commonly used in construction, metalworking, and automotive repair. These tools are typically powered by electricity or batteries, providing flexibility in usage. Safety is crucial when operating an angle grinder, as the high-speed rotation can create sparks and debris. Proper protective gear, such as goggles and gloves, is recommended to ensure user safety.