Feature: 1. Grinding head has good anti-corrosion properties, can damage and can be used for a long time. 2. Applicable to general manicure grinding machine, used for manicure polishing, pre-treatment, manicure, exfoliating, etc. 3. Grinding head made of selected tungsten steel has higher durability than that of high speed cutting tools. 4. Special designed for dead skin removal, nail trimming and nail polishing, meeting your different demands. 5. There are 5 different types nail drill bit available, you can choose according to your demands. Spec: Item Type: Nail Drill Bit Material: Tungsten Steel Usage: Dead skin removal, nail trimming and nail polishing Functions: T-1 Nail Drill Bit: Used to dead skin from the edge of the nail T-2 Nail Drill Bit: Used to dead skin from the edge of the nail T29 Nail Drill Bit: the cutin from both sides of the nail and the dead skin on the back edge T25 Nail Drill Bit: Exfoliating, fingernail sides, hard dead skin T28+ Nail Drill Bit: Push back edge dead skin, can replace nail pusher, dead skin at an angle of 30 to 45 degrees, dry and wet dual use. Use the top teeth to part of the dead skin Package List: 1 x Nail Drill BitThere are 5 different types nail drill bit available, you can choose according to your demands. Applicable to general manicure grinding machine, used for manicure polishing, pre-treatment, manicure, exfoliating, etc. Applicable to general manicure grinding machine, used for manicure polishing, pre-treatment, manicure, exfoliating, etc. Applicable to general manicure grinding machine, used for manicure polishing, pre-treatment, manicure, exfoliating, etc. Grinding head made of selected tungsten steel has higher durability than that of high speed cutting tools.