10pcs Nail Drill Bits The Needle bit can be used to clean the cuticle area, side walls and use it for under the nail edge. The Ball bit can also be used for the cuticle area, and side walls. The stone ball bit is for polish the corners or sharp ends after diamond one. The Flame bit is to clean dead skin on the side of the finger nail, or dry cuticle that is stuck on the nail. The tapered /drop-shape / cylinder are also to clean the side walls and dead skin on the side of the finger nail. The Brush bit ,you can use to clean off any residue left on the bits, and dust on the nail. But we all use them different depends on the habits and what you are used to work with /how.
