Air die grinders are used to grind, sand, and shape materials in metalworking, welding, HVAC, and carpentry. Compressed air is used to fabricate metal, smooth rough surfaces, and shape wood and plastic. The air compressor's pipe is connected to the grinder's air inlet connection in air die grinders. The air compressor is turned on, and the grinder's control lever is slowly squeezed. The collets' mechanism is rotated by the compressor's pressurized air forces. This results in spinning collets with a grinding accessory attached. An air die grinder is a highly versatile tool that can cut, shape, and polish metal, wood, plastic, glass, or stone.