1. VERSATILE: This bit set offers you all the designs you need for nail work. Versatile enough to handle all tasks such as cuticle removal, acrylic nail polishing, smoothing, shaping and cleaning. 2. Different roughness: The surface roughness of the drill changes from top to bottom to move the gel polish quickly. You can use it for various purposes such as cleaning, shaping, cutting, smoothing, etc. 3. Suitable: The size of the shaft is suitable for most nail drills, different shapes and sizes can meet different needs, suitable for both nails and artificial nails. 4. Ergonomic: Advanced craftsmanship is used to protect your skin from damage. The drill can be rotated from side to side, you can operate it with both left and right hands. 5. Reliable and Durable: Made of the highest quality tungsten carbide, the drill bits feature excellent strength, sharpness and durability and are also heat resistant. Specification: Item Type: Nail Tungsten Carbide Drill Bit Quantity: 7 pieces Material: tungsten steel and ceramic Package list: 7 x nail drillsErgonomic Nail Drill Grinding: Advanced craftsmanship protects your skin from damage. The drill can be rotated from side to side, you can operate it with both your left and right hand. Nail grinding head with different roughness: The surface roughness of the drill changes from top to bottom to move gel polish quickly. You can use it for different needs such as cleaning, shaping, cutting, straightening, etc. Nail grinding bits, reliable and durable: The drill bits are made of the highest quality tungsten carbide and feature excellent strength, sharpness and durability as well as heat resistance. Drill Grinding Head Suitable: The size of the shaft is suitable for most nail drills, different shapes and sizes can meet different needs, suitable for both nails and artificial nails. Versatile Nail Drill Bits: This bit set offers you all the designs you need for nail work. Versatile enough to handle all tasks such as cuticle removal, acrylic nail polishing, smoothing, shaping and cleaning.