? Made of Tungsten Steel, high hardness, long term life. Shank: 3/32" (2.35 mm). ? Different sizes of coarseness on the surface of drill: From top to the base of drill, the coarseness changes from fine ,to middle, to coarse. You don't need to change another drill for different size during working. Double Fine -XXF ( Mix with 3XF + XXF + XF). ? Teeth on the top of drill: could be used for clean dead skin or cuticle. ? 2 Rotate Direction: It's suitable for right handed nail artists, and also for left handed. And meantime, 2 directions for choose in different situation. ? Multi-function Nail Drill: 5 in 1, professional for nail artists. Multiple coarseness for your manicure machine: 3XC, XXC, XC,C ( Coarse), M ( Middle), F ( Fine), XF, and XXF. From 3XC to XXF, the coarseness is from big to fine.

GTIN: 016071239515. Best Sellers Rank: See Top 100 in Beauty & Personal Care. : B07SVRP235. Manufacturer: Fulei Trading. UPC: 016071239515. Item model number: CI5IND. Package Dimensions: 4.5 x 2.5 x 0.06 inches; 0.32 Ounces.