1、HIGH PERFORMANCE: Nail art drill bits vary in surface roughness from top to bottom, allowing quick removal of nail glue for cleaning, shaping, cutting, smoothing and removal to meet your various needs. 2、RELIABLE STRENGTH: Nail drill bit is made of tungsten steel for reliable strength, high durability, low cutting performance and less dust, and can quickly and nicely reshape, polish, slippy, buff, sculpt and slippy gel nails. 3、EASY TO USE: Nail polishing bit can be rotated to the right or left for slippy cuts in both clockwise and counterclockwise directions, perfect for both left and right handers, no need to change other size during work. 4、PERFECT FOR YOU: Nail grinding head is a nail machine that fits most drill bits, suitable for most gel nails and experienced nail technicians or nail art beginners, could be the best choice for you. 5、PLASTIC PROTECTIVE CASE: Nail polishing head comes with a matching plastic protective case for protection and easy storage, keeping these nail art bits well organized and resistant to damage.