Staleks Pro Expert Carbide Nail Drill Bit Rounded Cylinder Blue Head Diameter 5 mm Working Part 13 mm FT30B050 13 nano Do not process for more 71167 Do not process for more than 50 minutes • Ion generator produces millions of ions for frizz free shine and less static electricity Key Features:Series Expert designed for professional use by technicians of manicure and pedicure • High quality materials• High strength and resistance to external influences• Do not heat up during operation• The center of rotation does not shift at high speeds• Withstands all types of sterilization and disinfection• Remove artificial materials from the nail plate• Used for work with problematic natural nails• To correct the length and shape of the nailGrit: Blue• Purpose: For manicure