specification: Item Type: Nail Art Drill Bit Set_x000D_Material: Tungsten steel, carborundum, rubber, ceramics_x000D_Quantity: 15pcs _x000D_Shaft Diameter: Approx. 2.35mm / 0.09in_x000D_Characteristics: Used for manicure, nail polishing, nail salon, foot care, pedicure, nail removal, etc. to be used with nail polishers._x000D_Application: Household, nail salon, etc. Features: 1Comes with 15 different polishing heads, so you can easily and quickly reshape, polish, grind gel nails or acrylic nails, excellent nail tools for professional nail artists or beginners. 2There are many types and specifications of grinding heads, complete functions, and interchangeable use to meet your demands. 3Universal 2.35mm diameter shaft suitable for most grinding machines on the market, made of tungsten steel, which is durable. 4Various types of polishing heads, high wear resistance, quick nail gel removal, strong and durable, easy to carry around, suitable for family use. 5Corrosion?resistant and will not clog the nail. The dust brush can move the nail powder and dust on the nail, protect the drill bit after each use. PackageList: 15 x Nail Art Drill Bit