feature: 1. Powerful nail drill; 2. Speed range: 0-35000RPM; 3. The fast mechanical clamping method is adopted, which makes the clamping more reliable. 4. The handle has a unique heat sink, which will not overheat even after long-term use. 5. Manual/foot switch can be used to control start/stop, forward and reverse can be controlled, stable performance, reliable quality, and strong adaptability to the working environment. 6. The appearance adopts the buckle-type solid structure, which is convenient and safe for loading and unloading, practical and novel. 7. The traditional system has a unique double shock-absorbing structure, with small vibration and low noise. Precautions: 1. Keep a safe distance out of reach of children. 2. Please keep the environment clean. 3. Do not use improper external force to exert pressure on the product. 4. Prevent accidental startup. 5. Make sure the voltage volts of the outlets match. 6. Do not touch the product with your hands after it is started. 7. Please keep away from water and fire. 8. Wear goggles to prevent dust and dandruff from spraying into the eyes. 9. The grinding head and sand ring may be worn due to excessive rotation speed. Please rotate down and replace with new shaft and grinding head. 10. For safety, please turn off the power when not in use.