Feature:1. 10 pcs / set, with different shapes and functions, meeting your different grinding needs.2. Suitable for processing nail, glass, plastic, metal, stone, tile, ceramic, etc.3. It is made of tungsten steel and ceramic material, durable, wear-resistant and not easy to rust.4. It can be installed on electronic grinder, hand grinder and electric drill.5. Comprehensive nail drill bits, great for professional use or use.Specification:Condition: 100% Brand NewItem Type: Nail Drill Bit SetMaterial: Tungsten Steel, CeramicsQuantity: 10pcs / set Optional Type: BH-01, BH-02, BH-03 Package List:10 x Nail Drill Bits