This popular shape Cone Rounded is used for manicures and pedicures. These bits are of three variants. Fine (red) bits are recommended for: polishing the cuticle zone after removing the cuticle; cleaning under the nail edge. Medium (blue) bits are recommended for: lifting the cuticles before strengthening the nail plate bio gel or applying acrylic to the nail plate; cleaning the nail wall; removing dry, dead cuticles. Coarse (green) recommended for: removing rough, dry, dead cuticles around the nail and wall nail; cleaning rough, dry the nail wall; Maintenance: After each procedure, ensure the highest standards of hygiene: Wash, clean, sterilize, and dry all bits used during the process. Utilize a solution containing at least 70% alcohol for effective disinfection. Specifications: Speed recommendation: Up to 25000 RPM. Shank diameter: 3/32” Head dimensions: 2.1x10mm Length: 45mm Grit: Fine, Medium, Coarse Shape: Cone Rounded Material head: Diamond Material shank: Stainless steel