These allow for much more precision in cleaning up cuticles as well as smoothing and shaping acrylic nails. Made of premium ceramic material, they are sturdy and durable, can be used for long. 7 Pieces of nail drill bits with different use, they can help you do well in your nail art business. The bits have a nice, uniform surface so there is no gouging or catching of the skin, very safe to use. They can fit in your nail drill handpiece perfectly, a great drill bit kit for nail salon or home use.