PROFESSIONAL MULTIFUNCTIONAL - Designed with 6 kinds of metal bits and 6 abrasive belts, suitable for all kinds of 3/32 inch shank bits. Electric manicure drills are great for buffing nails, filing various nail shapes, and smoothing away calluses or hardened skin on hands and feet. Great for sanding, cutting, carving, filing, buffing and removing acrylic gel dip powder nails. HEAT - This electric nail file has a powerful yet quiet motor. The smooth and low-vibration design is precise enough for comfortable and safe nail polishing jobs. The aluminum alloy handle of the electric nail file has ventilation holes for faster and more effective heat dissipation. Even if it is operated for a long time, it will not make your hands feel tired.