Features: Compressed air for power, energy saving and environmental protection. Good sealing, stable speed and excellent transmission performance. Small air consumption, high rotation speed, smooth running and wear-resistant. Compact size and light weight for easy operating, high grinding efficiency. Suitable for grinding, trimming and shaping the surface of mold polishing, glass resin crafts, rubber tires and castings, etc. Specification: Model: KP-601 Weight: 624g/22oz No-load speed: 35000rpm Chuck size: 3mm/6mm Working pressure: 90psi Package List: 1* Air Grinder 2* Chuck (3/6mm) 1* Hose 1* Wrench 1Compressed air for power, energy saving and environmental protection. 2Good sealing, stable speed and excellent transmission performance. 3Small air consumption, high rotation speed, smooth running and wear-resistant. 4Compact size and light weight for easy operating, high grinding efficiency. 5Suitable for grinding, trimming and shaping the surface of mold polishing, glass resin crafts, rubber tires and castings, etc.