The D-2 diamond nail drill bits provide precision and versatility for professional nail care. These bits come in three variants, each designed for specific nail care tasks: Fine (Red): Perfect for polishing the cuticle zone after cuticle removal and for working with sensitive cuticles. Medium (Blue): Excellent for removing dry, dead cuticles and cleaning the nail wall. Coarse (Green): Effective for removing rough, dry, and dead cuticles around the nails. It can also be used for removing corns and their roots. Maintenance: To ensure hygiene and prolong the life of your drill bits, follow these essential maintenance steps after each use: Wash, clean, sterilize, and dry all used bits thoroughly. Disinfect with a solution containing at least 70% alcohol. Specifications: Speed: Up to 25,000 RPM Shank Diameter: 3/32” Length: 45 mm Head Dimensions: 1.4 mm x 1.2 mm Shape: Ball Head Material: Diamond Shank Material: Stainless Steel