Features 1、Complete functions and can be used interchangeably, can be rotated forwards and backwards, has functions of shaping, removing nail polish, removing dead skin, carving radian, etc, convenient to use. 2、It can meet the needs of different nail art, and can be used for manicure, nail removal, nail polishing and peeling. 3、Carbide nail drills are ideal nail tools for various professional tasks, such as engraving, grinding, sharpening, polishing, and so on. 4、General‑purpose 2.35mm shank diameter is suitable for most grinders on the market, shank diameter of grinding head is made of tungsten steel, durable. 5、It is used for manicure, nail removal, etc, can be used with nail polisher, suitable for home use, nail shop, etc. Specification Condition: 100% Brand New Item Type: Nail Drill Bits Model: Round Head XF, Round Head F, Round Head M, Round Head C Material: Tungsten Alloy Handle Diameter: Approx. 2.35mm/0.1in Features: Used for manicure, nail removal, etc. with nail polisher. Application: Household, nail salon, etc. Package List 4 x Nail Drill Bits