Features： 1、It has complete functions, can be replaced to use, can be rotated forwards and backwards, has the functions of sanding, polishing the nail surface, removing dead skin, etc. 2、It can meet the needs of different nail art and can be used for manicure, nail polish removal, etc. 3、2.35mm diameter nail drill bit handle, suitable for most nail drill machine, practical accessory. 4、Multi?functional drill bits, ideal tool for many professional tasks. Adopts high quality carborundum material, wear?resistant and durable. 5、It can enter all the small cracks in the stratum corneum well without hurting the nails, convenient for operation. Specification： Item Type: Nail Drill Bits Quantity: 30pcs Material: Carborundum Shank Diameter: Approx. 2.35mm / 0.1in Features: Used for manicure, nail polishing, nail salon, foot care, pedicure, nail polish removal, etc. to be used with nail polishers. Application: Home, nail salon, etc. Package List： 30 x Nail Drill Bits