Feature:1. Efficient Use: Ensuring smoother grinding performance under high speed, the rotary file enables high work efficiency.2. Broad Utility: Allows for wide application on the fine carving of resin, plastic, porcelain, soft metal, stone, etc.3. 5pcs in Total: Including 5pcs different grinder bit, which can cut out various shapes to meet your various work needs.4. Perfect Match: With universal hex shank to work with electric polisher, carving knife and other tools, very practical.5. Good Material: Using high speed steel material with good hardness, very durable with wearing, heat and long term use.Specification:Item Type: Rotary FileMaterial: High Speed SteelColour: GoldApplication: Suitable for fine carving of resin, plastic, porcelain, soft metal, stone, etc. .Package List:5 x Rotary File