Item Type: Nail drill bit_x000D_ Shape: Corn head_x000D_ Material: Ceramic _x000D_ Outer Diameter: Approx. 6mm / 0.24in_x000D_ Shank Diameter: Approx. 2.35mm / 0.09in_x000D_ Length: Approx. 48mm / 1.89in_x000D_ Patten(optional):_x000D_ 1. Extra coarse grinding XC black box_x000D_ 2. Coarse grinding C green box_x000D_ 3. Medium grinding M blue box_x000D_ 4. Fine grinding F red box_x000D_ 5. Extra fine grinding XF yellow box 1Easy to use and light weight, nail drill bit is in small size, easy to store or carry. 2Nail drill bit rotating burr small hole cleaning head is perfect for all types of nail work from carving, polishing to polishing. 3The intersecting stripes of the drill bit can help you polish and reshape your nails. 4Made of ceramicmaterials in high quality, nail drill bit supports exquisite craftsmanship, light and practical. 5Corn head shape keeps nail drill bit with high attraction, entitled with practical adoptability.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.1 x Nail Drill Bit