Product introduction: The speed can reach 20,000 rpm It can be rotated in both directions, and the machine body is smooth and quiet during operation. Replaceable grinding head for easy operation Input voltage 110V/220V50Hz/60Hz is suitable for use Output DC12V, 1.0A Single size: 25.5*15*7cm This product is specially designed for the nail industry. The nail polishing heads specialized in the nail industry can be exchanged with different specifications of bricks. It can be used in grinding processes in different industries, such as dental polishing, mold polishing, polishing and polishing of jewelry, etc. The rotation speed is higher than the original. Up to 20000-30000rpm.· Beautiful style and generous style.· Stable performance, reliable quality and adaptable working environment.· The appearance of the mobile phone is beautiful and elegant, and the streamlined design fully reflects the concept of ergonomics.·The shape of the mobile phone adopts a snap-on fastening structure, which is convenient for loading and unloading.·The traditional system double shock absorption structure, low vibration and low noise.· The phone speed is up to 15000rpm.· Can control the forward/reverse control.· Built-in over voltage, current, overload protection device.·The grinding tool clamping device can be replaced, and the service life is limited.