The efficient heat dissipation performance can effectively avoid overheating. The Electric Nail Drill has low noise and vibration when polishing nails. The quiet and smooth, very low vibration design makes our Electric Nail Drill a good choice for your nails. -Multifunction: Nail Drill with 6 optional standard bits and filing heads with 6 sanding bands that effectively smooth corns and calluses, removing excess cuticles, and filing, shaping and buffing nails. Easy attachment change. No tools needed for inserting or removal of a bit -Adjustable Speed and Easy to Use: Variable speed from 0-20000 RPM with speed control button, which makes electric nail drill easier and safer to polish nails. Plug in the power cord and you are ready to use. Small pen shape, easy to operate, easy to carry. -Potable Polisher: Equipped with fast head-loading mechanism, good locking effective, high speed. Low variations, and safety with low voltage machine. Nail rigs can be used for natural nails as well as artificial nails for professional use, nail salons, make-up studios or home use. With these units, you can easily and gently treat your hands and feet to a standard of perfection and elegance.