Specification:Condition:100% Brand NewItem Type: Electric Nail DrillPower: 25WVoltage: 110~240VMaterial: ABSOptional Color: Black, White, PinkSpeed: 35000rpmBattery Type: Built‑In BatteryBattery Model: 444258Battery Capacity: 1680mAhSize: Approx. 140mm/5.5in, 155mm/6.1in, 27mm/1.1in, 75mm/3inProduct Features: Grinding, polishing, removing nail gel, exfoliating, and engraving curvature. It is suitable for mold grinding, cutting, polishing, tooth manufacturing processing, denture grinding, handicraft processing, carving, grinding and polishing, various nail, accessories beauty operations.Purpose: Home, Nail art salon6‑Piece Drill Function:1. 3 rough diamond drill bits: can be used for nail thinning, shaping and etching2. 3 fine diamond drill bits: can be used to remove gel polish, clean under nails, refine the epidermal area and shape.Instructions for use:1. Plug the phone into the DC output socket on the host.2. Insert the host plug into an appropriate power socket.3. Insert the drill directly into the chuck of the mobile phone.Package List:1 x Host, 1 x Polish Pen, 1 x Power Plug, 1 x Polishing Pen Cable, 1 x Polishing Pen Holder, 1 x Polish Pen Base, 6 x Polishing Head, 6 x Sand Circle, 1 x ManualNote:When using an electric file, do not unlock the twistlock handle, because this will damage the debris. If you want to turn off the electric file or change the drill bit, you must turn the quick dial to the "o" position to avoid damage to the motor.