Features 1. Antibacterial. 2. No clogging. 3. Resistance of acid, alkali and heat. 4. Improvement of customers' feel. 5. Excellent durability and cutting performance. 6. Unusual, eye-catching appearance for easy identification. 7. Protection of E-Files. Package List 1 * Nail file drill bit Notice 1. 2.35mm (3/32 inch) shank diameter, our drill bit fit for most electric manicure machines on the market. 2. Check nail bits before use. 3. Always wear eye-protective safety glasses. 4. For professional use only. 5. Do not use if it is dropped. 6. Keep out of reach of children. 7. Disinfect nail bits after use. welcome to visit our store to get more types nail Drill bit