USB Cordle Rotary Tool Kit Woodworking Engraving Pen DIY For Jewelry Metal Gla Mini Wirele Drill Features: 1. Upgrade the USB interface: more portable. You can plug this nail drill into any USB port such as a power bank, laptop, adapter or car charger and start working anytime, anywhere 2. Lightweight Design: Precise operation. Beautiful appearance. The elegant, refined and streamlined design fully embodies the concept of ergonomics. 3. Provide 15000RPM powerful power and more stable, low vibration performance. Perfect for sanding, sculpting, cutting, polishing all nail art and exfoliating and more for all nail beauty needs 4. The unique double shock-absorbing structure of the traditional system is quieter and lower in noise. You can easily grind, carve, cut, polish and remove gel for yourself or others while your kids and family sleep. 5. Premium quality will provide you with a comfortable gripping experience. High heat diipation efficiency and guaranteed quality Instructions: 1. Pre and hold the sharpening pen button; 2. Loosen the inner thread of the head; 3. Insert the required grinding head; 4. One-way tightening after insertion, the speed is adjustable. Speed: 15000r/min Voltage: 3.7V Power Mode: USB Connector Power Color: red/green/grey Applicable: for grinding and polishing Quantity: 24 acceories (excluding polishing pen) Package Contents: 1*Polishing pen 1*Grinding head set acceories (including grinding needle*13, sand ring*2, chuck*5, cotton piece*2, saw blade*1) 1*USB cable Note: 1. Manual measurement, allow a small error of 1-3cm, thank you. 2. Due to the differences between monitors, the pictures may not reflect the actual color of the item. Please allow a small color difference.