Features:
Tungsten Carbide Medium Cross Coarse Nail Drill Bit (1pcs):
Highest Precision Standards: Made of hard metal with tungsten carbide, these nail art tools have the optimum strength, sharpness, durability, and the vibration-with a powerful cutting ability and free filing consistency you need, all while producing minimum friction which causes heat. To protect from overheating damage with heat resistance.
Professional Quality: Sharp and easy to use - cut your time in a half. With minimal filing needed to get the job done. It also causes less dust than diamond. You can use it for cuticle work and surface reduction.
Universal Size: 3/32" shank, suitable for most electric or rechargeable  rotary file machines. To protect your skin from being harmed thanks to superior craftsmanship and well-tested design.
Function - It is ideal for nail beautify, nail polishing, nail clear and care, peeling, etc., suitable for pedicure use. You can sharpen, grind, neaten, carve, smoothen, polish, and reshape thick nails. The drill bit is designed with cross teeth edition which is low heat and fast remove, it won't be burning hot during long-time use.