Item Type: Nail Tungsten Carbide Drill Bits Quantity: 7pcs Material: Tungsten steel and ceramics1Versatile: This bit kit provide you all the designs which are necessary for nail jobs. Versatile enough to do all the jobs like cuticle removing, acrylic nail polishing, smoothing, shaping and cleaning. 2Various Roughness: The drill bit surface roughness changes from top to bottom to quickly move gel polish, you can use it for various needs such as cleaning, shaping, cutting, smoothing, etc. 3Suitable: The size of shank is suitable for most nail drill machine, various shapes and sizes can meet different needs and are suitable for natural nails as well as artificial nails. 4Ergonomic : Advanced craftsmanship is adopted to protect your skin form being harmed, The drill can rotate from side to side, you can operate with both your left and right hand. 5Reliable and Durable: Made with the highes standard tungsten carbide, the drill bits have super strength, sharpness and durability and are also heat resistance. 7 x Nail Drill Bit