Best selling nail drill bit. One of the most popular e-file bit shapes - Flame with Rounded Tip. This nail drill bit can be used for manicure and pedicure. Medium (blue) bits are recommended for lifting the cuticles before strengthening the nail plate with bio gel or applying acrylic to the nail plate, cleaning nail grooves and treating thickened skin, small corns and calluses during manicure and pedicure. Fine (red) bits are recommended for polishing skin after treating thickened skin, small corns and calluses and lifting sensitive cuticles and polishing cuticle zone after removing cuticle. Maintenance:After completing a procedure with a client, it is essential to:Wash, clean, sterilize, and dry all bits used during the process.Use a solution of at least 70% alcohol for effective disinfection. Specifications:Speed Recommendation: Up to 25,000 RPM. Shank Diameter: 3/32” Head Dimensions: 2.3x9 mm Bit Shape: Rounded Tip Plame Material Head: Diamond Material Shank: Stainless Steel