ELECTRIC NAIL DRILL FILE MACHINE FEATURES --- The brushless grinder has low temperature rise, low energy consumption, long life, speed up to 40,000 rpm, silent and no jitter, automatic control of the start and stop of the motor, automatic protection device, and no blocking under high-speed operation. HIGH QUALITY ABS AND METAL MATERIAL --- Made of high quality ABS and metal material, stable and durable, can be used for a long time.The nail drill machine can quickly polish your nails and make your nails smoother. ERGONOMIC HANDLE DESIGN --- Adopts ergonomic handle design, which is easy to grasp and not easy to slip off.Nail Art Drill will not let your hand be tired after long-term use. Pencil-shape and lightweight design are perfect for extended use. USAGE --- Wide applications, Nail Drill Machine is suitable for engraving, milling, grinding, sharpening, polishing, etc.Two speed grades avaliable, you can choose the right grade according to your needs. PORTABLE & LIGHTWEIGHT --- Designed with a high-quality metal long-life handpiece, low noise, low vibration, low heat for handling, suitable and safe for use. Convinent to carry around. POWERFUL MOTOR The brushless grinder has low temperature rise, low energy consumption, long life, speed up to 40,000 rpm, silent and no jitter, automatic control of the start and stop of the motor, automatic protection device, and no blocking under high-speed operation. HIGH QUALITY ABS AND METAL MATERIAL Made of high quality ABS and metal material, stable and durable, can be used for a long time.The nail drill machine can quickly polish your nails and make your nails smoother. WIDE RANGE OF USES Wide range of uses, suitable for nail salon or home use. Can be used for engraving, milling, grinding, sharpening, polishing, etc. PORTABLE & LIGHTWEIGHT Designed with a high-quality metal long-life handpiece, low noise, low vibration, low heat for handling, suitable and safe for use. Convinent to carry around. How to Use: 1. Connect the power cord of the sanding pen to the socket marked "Motor" (DC motor connector) on the right side of the control unit. 2. Long press the left button to turn on/off. 3. The speed control knob can start/stop the motor and adjust the speed. 4. Press the speed control key to pause the speed, and press it again to resume the speed. 5. Press the forward/back button to select the F/R direction 6. The motor speed can be changed between 0‑40,000 rpm and displayed on two LCD displays. 7. The large LCD screen can display speed, battery power and F/R direction. Package List: 1 x Main Unit 1 x Sanding Pen 6 x Sanding Head 6 x Sanding Ring 1 x Pen Holder 1 x Instruction 1 x Adapter Specification: Condition:100% Brand New Item Type: Nail Drill Machine Material: ABSMetal Power: 80W Voltage: 100~240V Speed: 40000RPM Battery Type: Built-in Battery (Battery Included) Battery Capacity: 2600mah Charging Time: 2.5 Hours Life Time: 7.5 Hours