Feature: A combination of quick conversion polishing machine and multifunctional power box. Specially designed for precision polishing of nails, teeth, molds, jade, jewelry and more. Different head designs can achieve different polishing effects. Portable polishing machine: Equipped with a quick head mechanism, with good locking effect and fast speed. Safety for low-variance and low-voltage machines Power box: stable power supply, overload protection, effective converter, pedal, stepless speed regulation. Specification: Item Type: Electric Nail Drill and Accessories Input: AC110-120V/220-240V, 50/60Hz Speed: 35000 rpm Size: H 7 cm L 12 cm D 16 cm TWIST-LOCK GRIP HANDLE function FWD/REV to improve the sense of rotation nstruction: 1. Turn the speed control counterclockwise to slow the head down to minimum, then turn it off and turn the main power on to 0. 2. After the operation is completed, place the grinding head on top of the main panel. 3. When the grinding head is working, do not unplug the 5-pin plug of the portable grinding head 4. If it is idle for a long time, disconnect the power. 5. It is forbidden to disassemble the product without authorization. In case of failure, please contact your dealer or authorized repair center. We promise fast, high-quality, high-quality service. 6. If the power cord is damaged, it must be replaced by the manufacturer, its service agent, or similar to prevent a hazard. Package Included: 1x main unit 6x nail drills