Feature: 1. Rotate the annular central shaft for speed regulation, one‑button switch, click forward and reverse rotation 0‑35000pm, and the rotation speed can be adjusted according to the needs. The LCD display screen can see the steering, the speed and the power. 2. The handle shape is all metal, suitable for mold cutting, engraving, denture grinding, nail polish, gel polish removal, dead skin removal, drill removal, etc. Ergonomics design, pen‑type body, compact and convenient, not easy to leave fingerprints, not easy to fatigue after long‑term use. 3. The vertical charger is either to charge the machine, or as a stand for the machine. It does not take up space and has a built‑in 4000mAh large capacity battery. 4. High accuracy and high torsion, low noise, low vibration and low heat. The ventilation design reduces the temperature of the polishing pen. 5. The brushless machine has a built‑in permanent strong magnet, will generate more power during the high‑speed operation of the resistor, and it will also reduce the noise and efficient operation, the brushless phase is more energy‑saving. Specification: Item Type: Nail Grinding Machine Material: ABS Power Supply: USBPower: 36W Speed: 35000RPM Battery Type: Lithium battery (included)Battery Capacity: 4000mAhCharging Time: 3 hoursService Time: 16 hoursEfficacy: It has the functions of sharpening, polishing, removing gel polish, exfoliating, engraving arc and so on. It is used for various manicures, accessories and beauty operations. . Package List: 1 x Nail Grinding Machine1 x Charging Dock2 x Nail Grinding Bits1 x Nail Grinding Pen1 x USB Cable1 x Nail Grinding Bit Cable1 x Manual