1. Harte LegierungsmaterialMade from carbide material, durability and longevity for longterm use. The carbide construction makes these rotary files resistant to wear and provides reliable performance during operation. 2. DoppelkornWolframkopf: The rotary files feature a doublegrain tungsten head, which improved cutting efficiency and precision. The doublegrain design provides optimal performance and reduces the risk of slipping, ensuring accurate and smooth operations. 3. AnwendungenSuitable for various operations and tasks, these carbide rotary files high precision and versatility. They can be used for grinding, polishing, shaping, and deburring on various materials such as metal, wood, plastic, and more. 4. Praktische Aufbewahrung: The 10piece carbide rotary file set comes with a plastic box for easy and organized storage. The box protects the files from damage and loss, making it convenient to carry and access the files whenever needed.