Feature:1. Pneumatic grinder, built‑in free speed regulator, can up to 10,000 revolutions per minute.2. Suitable for fine processing of composite materials such as wood, metal, glass fiber, etc.3. Compact design, excellent comfort and controllability, reduce user fatigue by reducing vibration.4. With rubber handle, it is comfortable and easy to hold, labor‑saving operation, suitable for long‑term work.5. Made of high‑quality zinc alloy + rubber materials, high strength, wear resistance and durability.Spec:Item Type: Pneumatic SanderMaterial: Zinc Alloy + RubberColor: As shown in the pictureGrinding Disc Size: Approx. 15x15cm / 5.9x5.9inWeight: Approx. 1411g / 49.8ozProduct Speed: 10000rpmProduct Air Inlet: 1/4Deflection Diameter: 5mm / 0.2inAir Consumption: 0.48m³/minApplication: home decoration, handicraft polishing, burr trimming, etcPackage List:1 x Pneumatic Sander1 x Wrench1 x Instruction Manual1 x Bag 1 x Vacuum Tube1 x Connector5 x Abrasive PaperNote:Carry out a trial run for at least 30 seconds under no load and confirm that there is no abnormality before use. The air pipe must be placed at the rear end during operation to accidents. Hold the machine with both hands during work and ensure a stable footing .Suddenly stop the air during work, you must immediately set the switch to the off state. During the grinding and polishing process, you should apply force evenly, and it is strictly forbidden to apply too much force or hit the object.