The Shape It Up Carbide Milling Bit Purple Rounded Volcano Cone 2-Way Medium Blue is a carbide milling bit in a rounded cone shape. If you are looking for the best milling bit that can remove any nail system, then this is the bit for you! The special purple coating is exceptionally good, resistant to heating, has low vibrations, low noise, and wear-resistant properties. In addition, the special three-layer purple coating is armor to last a long time in your milling bit kit, made from the hardest metal, tungsten. In short, razor-sharp with high durability, what more could you want? This Shape It Up milling bit quickly mills away old nail product, makes the nail surface neatly smooth, and works well along the sidewalls and cuticles. You can also use this milling bit to shorten or shape the nails. This volcano cone milling bit can be used for both right-handed and left-handed use and has a blue grit, which stands for a medium grit that is medium coarse. The medium grit is a medium coarse grit and is suitable for removing flexible builder gel, BIAB and acrygel. Set your electric nail file between 25,000 and 35,000 RPM when using this carbide milling bit. Shape It Up carbide milling bits are easy to clean with a brass or nylon brush, and you can soak the bit in Klear Sanifiner, Klear 70% Alcohol, or the special hygienic spray Klear Tools and Surfaces to kill viruses and bacteria.