1、3 TYPES OF TEETH: Nail polishing bit has 3 types of teeth, from top to bottom, the teeth become larger, suitable for different situations. 2、TOP WITH TOOTH PATTERN: The top of the nail grinding bit is engraved with a tooth pattern, which makes it easier and faster to use with nail removal. 3、2 WAYS USE: Nail drill bit can be used for both left and right handed use, and can be rotated in both directions to improve the efficiency of nail grinding and removal. 4、MULTI FUNCTIONAL: Nail grinding head can trim and remove dead skin from the nail edge, polish the inside of the nail edge and remove the rhinestone. 5、HIGHLY EFFICIENT: Nail polishing drill bit has three types of teeth for quick and easy removal of crystal nails and phototherapy nails. 1 x Nail Drill Bit1 x Storage Box Item Type: Nail Drill BitMaterial: Tungsten Steel