Description: Rotate Directions Function: Good for right hand and left hand . And also easy to operate when you need different rotate direction for nails. 5 in 1. at the top of Drill: the for , cuticle. The size of coarseness is changes from the top to the end of the drill surface, from fine to coarse. you can remove nail / dip , and even the hardest acrylic nails and decorations.You don't need to change another size drill in the middle of working. Just choose a right size/ part of the drill to do it. Made of Tungsten steel, high hardness, long term life. Great cutting, each drills is in good order. Fits most 3/32" size machine. Perfect for use on acrylics or hard gels, excellent smoothing cutting performance for or home. Specification: Size: 7x1.3x1.3cm Matetial: tungsten steel Lines(optional) F: Fine M: Medium C: Coarse Package Includes: Bit Note: Transition: 1cm=10mm=0.39inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!