Features: 12 pcs/ set and different types can meet your different grinding needs. Suitable for processing nail, glass, plastic, metal, stone, tile, ceramic, etc. Perfect grinding effect and it will provide you long service life. Replace small grinding wheel with handle, without dust pollution. Easy to grind, easy to use, safe and reliable. Specification: Item Type: Nail Art Accessory Material: Tungsten Alloy Optional Type: Type A, Type B, Type C, Type D, Type E, Type F Quantity: 12pcs / set Package List: 1 x Set of Nail Drill Bits (12pcs) Note: If you are a DIY hobbyist or craft hobbyist, it can be installed in the electronic grinder to provide you with more functions.