Feature: 1. Easy to Use: The surface roughness of the drill varies from top to bottom, which can quickly remove nail glue for cleaning, shaping, cutting, smoothing and removal, to meet your various needs. 2. Durable Material: Nail drill bits are made of tungsten steel for reliable strength, high durability, low cutting performance, less dust, and can quickly and well reshape, polish, polish, sculpt and glossy gel nails. 3. Rotatable: The drill can be rotated to the right or left to achieve clockwise and counter clockwise cuts, ideal for left and right hands without changing sizes during the job. 4. Plastic Protective Case: The 5 in 1 nail drill bits come with a matching case for protection and convenient storage to keep these nail art bits organized. 5. Scope of Application: This replacement nail drill bits is suitable for most nail machines with drill bits, suitable for most gel nails and experienced manicurists or beginners. Specification: Item Type: Nail Drill Bits Material: Tungsten Steel. Package List: 1 x Nail Drill Bits1 x Storage Box