Multi-function: Our electric nail file is equipped with 11 drill bits and 6 nylon wheels for shortening, filing, trimming and polishing nails and removing cornea, cuticle, calluses and corns.Adjustable speed: adjustable speed and rotation, the electric nail clipper can be adjusted from 0 to 20,000 rpm, and our grinding head has a super locking force. Easy to use: Plug the USB cable into the USB adapter (or any USB port source) to the main power outlet, and select the desired speed by turning the variable speed control knob on the handle. Lightweight, needle-shaped, and compact design make it easy to operate and replace the drill bit without tools.Safe and durable: The electric nail set is made of aluminum body, which helps to effectively dissipate heat, has a long service life and a long service life. Easy to carry: This mini electric nail clipper nail art is cute and lightweight, and can be carried anywhere, just put it in a handbag, suitcase, etc. This is a professional polishing tool electric nail/pedicure set, suitable for nail salon, pedicure and home use. Product description Features: 1. Perfect care, shorten and shape nails. 2. Remove calluses, calluses, corns, and hyperkeratosis. 3. Low noise, stable speed and adjustable speed are the three main characteristics of electric nail files. 4. Mini electric nail clippers can be used for travel in a handbag or suitcase. 5. The aluminum body is used to help effectively dissipate heat. how to use? 1. Insert the USB cable into the USB adapter (or any USB port source) to the main power socket; 2. Select the desired speed by turning the variable speed control knob on the handle; 3. To fix the drill bit, push the required drill bit firmly into the hole; 4. Take off the drill bit: Turn off the machine and gently pull out the drill bit. Reminder: 1- Don't let the nail drill work too long, because even if the aluminum body has efficient heat dissipation, you may feel very hot. 2- Pull out the drill bit after use to avoid premature loss of elasticity of the fixture. 3- Keep it clean and dry. 4- Soak your hands for a while before use. Package includes: 1 * Electric nail file; 1 * USB data cable; 1 * Description; 11 * Steel grinding head; 6 * Nail sand ring