Thi is an air die grinder kit. It is a pneumatic tool used for grinding, polishing, and sanding various materials.
The kit typically includes the grinder, collets (1/4" and 1/8"), wrenches, and a set of mounted grinding stones.
The tool operates at a high speed, often around 25,000 RPM, and requires an air compressor to function.
It is designed for industrial use, such as for car tire repair and other grinding and polishing tasks.