The speed of this portable electric nail drill machine comes with a gear wheel speed control button, which can reach between 22000 and 25000 RMP. The streamlined body with a smooth-running function is designed to reduce much noise and heat. The aluminum alloy shell prevents the electric nail drill machines from overheating in the process of doing nail care and moreover, your hands will feel comfy in this way. The bullet-shape polishing head will polish and smooth the edges of your nail. You can find this set of practical and useful electric nail drill machines can not only be used for manicure and pedicure, but it can also be ideal for pet nail sanding. In addition, it can be used on different occasions, like professional nail salons, studio and home use, etc.