Warm Tips for Extending Lifespan- Please do not forcefully drop the nail drill machine. When shutting down the nail drill, first switch from high speed to low speed, and then shut down. Do not shut down directly at high speeds. Thank you for choosing Saviland nail drill set for manicure and pedicure. Happy shopping!. Low Noise Low HeatSaviland electric nail drill is made of premium quality material with an ergonomic design, easy to hold, and built in a powerful yet quiet motor with smart heat dissipation. Low noise, low heat, and low vibration during use, giving you a comfortable experience of manicure. 4000mAh Larger CapacityHigh-capacity batteries in nail drills ensure continuous and smooth operation, improving efficiency and precision. With a full charge time of 4 hours, they provide up to 12 hours of usage. Ideal for extended and uninterrupted nail art sessions, especially in outdoor or power-limited environments. Adjustable Speed DirectionSaviland nail drill for acrylic nails has a speed control button to adjust the speed 0-35000RPM, and has an R F button to control the forward and reverse rotation directions. You can adjust to the appropriate speed and direction according to your needs and habits. 8 Nail Drill Bits Meet All NeedsSaviland electric nail file contains 3 Ceramic Bits and 5 Polishing Heads basic nail drill bits for beginners and professionals. With different kinds of nail drill bits, the nail drill machine can be used for grinding, filing, cutting, polishing and removing gel nail polish, cuticles and dead skin without hurting hands and nails. 35000RPM Professional Nail Drill KitSaviland professional electric nail drill kit comes with a nail drill machine, up to 35000RPM, is tailored for quick nail art removal, like acrylic powder nails, gel nail polish, builder gels, french nail tips, dipping powder, chrome nail powder, nail glue gel, nail decorations and so on.