specification: Item Type: Nail Drill Bit Set_x000D_Material: Carborundum_x000D_Quantity: 30pcs_x000D_Shank Diameter: Approx. 2.35mm / 0.09in_x000D_Function: Can be used with polishing machine to polish nails, remove nails, trim nails, remove dead skin, quickly remove nail gel and various UV gel, etc._x000D_Applicable: Household, nail art shop, etc. Features: 1Multifunction: Interchangeable use, nail drill bits can be rotated back and forth, with polishing, remove nail polish, remove dead skin and other functions. 2Multiple Use: Nail grinding bits can meet different nail art needs and can be used for manicure, nail removal, nail polishing and peeling. 3Suitable Size: With 2.35mm / 0.09in diameter shank, which is suitable for most nail polishing machine. 4Professional: Including 30pcs nail drill bits of the package, which is the ideal nail art tool to complete a variety of professional work. 5Effective Operation: Nail polishing bit works well into all the tiny cracks in the cuticle without damaging the nails. PackageList: 30 x Nail Drill Bits 1 x Storage Box