High Quality & Durable: These nail drill bits are crafted from superior ceramic material for durability and long-lasting performance. Enjoy excellent heat dissipation for faster cooling during high-speed and extended use. Artificial Nail Polishing: Our electric nail file drill kit comes with 7 different ceramic nail bits to meet your grinding needs for various nail areas. The combination of different tips allows for trimming and polishing your natural nails, especially for removing edge and sidewall nails and dead skin. Compatible with Most Nail Drills: The universal 3/32\" (2.35mm) stainless steel shank fits most electric nail drills on the market. The nail bit sets are secured in a mini case for easy storage in your pockets or bags. Save Time & Money: These electric nail files fit most nail drills, eliminating the need for advance manicure appointments. Plus, you can DIY your nail art and bring the nail salon experience to your home.