Feature:1. WIDE APPLICATIONS: The air die grinder set is often used for grinding, polishing, hole repair, light welding, seam and cutting, etc.2. 10PCS GRINDING BITS: The kit includes 10pcs grinding bits of different shapes and sizes, which can meet more grinding needs.3. HIGH EFFICIENCY: The radial runout is less than 0.15mm, the is more accurate, and the work efficiency is higher.4. SPEED CONTROL: The speed is 22000RPM, and the simple touch stick can accurately control various speeds.5. BEARING STRUCTURE: The bearing structure can improve the balance and reduce the vibration, with stable and strong practicability.How to Use:Refer to the manual for use.Specification:Item Type: Air Die Grinder SetMaterial: Carbon Steel + Stainless SteelApplication: Used for grinding, polishing, hole repair, light welding, seam and cuttingChuck Size: 1/4in (6mm), 1/8in (3mm) Speed: 22000rpmAir Consumption: 4CFMAir Pressure: 90PSIAir Inlet: 1/4inInterface Type: Japanese Interface Package List:1 x Air Polishing Grinder10 x Grinding Bits2 x Chuck2 x Wrench1 x Pneumatic Connector1 x User Manual1 x Plastic Box