3/32 inch size: suitable for standard 3/32 inch (2.35 mm) electric nail drill, easy to replace. Material: It is made of ceramic material, which is stronger and cleaner than cemented carbide drill bits, and can be used for a long time. Drill bits: Contains 7 multi-function drill bits. The drill bits of different shapes are comfortable to touch and easy to use.Stand box: equipped with a display cabinet for storage, so that your drill bit is organized, safe and dust-free, and convenient for you to carry it with you. Application: suitable for engraving, engraving, grinding, milling, grinding, grinding, polishing, drilling, etc. It is very suitable for natural nails and artificial nails. Product description Package includes: 6x drill bit 1x cleaning brush 1x bracket box Application: Suitable for natural nails and artificial nails. Suitable for professional manicurists and beginners to use at home and salons. Very suitable for engraving, engraving, grinding, milling, sharpening, grinding, polishing, drilling, etc. The purpose of 7 drill bits: Needle file: Remove dead skin and ingrown skin from nails and toes. Ball drill: clean the inside of nails and spilled nail polish. Ceramic drill (tapered top): exfoliates and removes dead skin. Ceramic drill bit (M barrel): Remove hard UV gel or crystal nails. Ceramic drill (F): Remove gel, grind the sidewall and stratum corneum, without skin dome. Coarse sand: Remove acrylic nails and reach small and tight areas without scratching the nails. Brush Polish & Shine: Clean and polish the nail surface. 3/32" shank size, suitable for most standard size nail drills.