Specifications: This product is suitable for grinding, deburring and shaping the surface of metal parts, wood components, rubber tires and castings. Made from high quality alloy and cast aluminum material, it features reliable and stable performance. It is easy to operate, which is perfect for both beginning and experienced persons. Item Name: Pneumatic Grinder Material: Alloy, Cast Aluminum Working Air Pressure: 90psi (6.2Bar) No-Load Speed: 2000rpm Air Consumption: 2.8Cfm Air Inlet Connector: 1/4inch Feature: Wear-resistant, Fast Speed, Easy to Use, Hardware Tool Grinder Size: 16cm x 7.5cm x 3cm/6.30" x 2.95" x 1.18" (Approx.) Chuck Size: 3.15mm - 6.35mm/0.12" - 0.25" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Pneumatic Grinder 1 x Air Inlet Connector 2 x Wrenches 1 x Chuck