Tips for using electric nail drill 1. The speed with a precise sliding control is adjusted up to 20000rpm. Suggest start with low speed. Operation for the nail drill is friendly for a beginner. 2. Please insert drill bit securely in case of shaking when it's rotating. Dont worry, its easy to insert and pull it out. 3. Please tun off the power when changing the drill bits. 4. Please pull out the drill bits after using it and keep nail drill and bits in dry place. See more?SAFETY WARNING & PERFECT GIFT?To ensure safe usage, it is recommended not to exceed 20 minutes of continuous operation with the electric nail drill. If you are interested in nails art, our nail drill is a must for you. It's also a great gift for Birthday, New Year, Christmas, Mother's Day and Valentine's Day. ?COMPACT & PORTABLE DESIGN?With its compact and lightweight construction, the electric nail drill is convenient to carry around, making it ideal for home use and perfect for travel. It features a standard USB port for easy plug-and-play compatibility with various power sources. ?ADJUSTABLE SPEED & DIRECTION?The electric nail file offers a speed control button, allowing you to adjust the RPM from 0 to 20,000, and an R/F button to switch between forward and reverse rotation directions, suitable for right-handed or left-handed use. This user-friendly design caters to individual preferences and habits, making it suitable for both beginners and professionals. ?LOW NOISE & LOW HEAT?Crafted with premium aluminum and designed ergonomically, the nail machine features a powerful yet quiet motor with smart heat dissipation. Experience smoother and faster nail grinding and gel removal with minimal noise, heat, and vibration, ensuring a comfortable and enjoyable manicure session. ?MULTIFUNCTIONAL NAIL DRILL KIT?The 20,000 RPM electric nail drill comes with 6 nail drill bits and sanding bands. Allowing for versatile applications such as grinding, carving, cutting, polishing, and gentle removal of gel nail polish, cuticles, which meets all nail beauty needs.