The Diamond Nail Drill Bits D25 – Inverted Cone are a precision tool designed for professional manicure and pedicure procedures. Their unique inverted cone shape allows for controlled, detailed work in hard-to-reach areas, making it an essential bit for nail technicians who value accuracy and versatility. This bit are ideal for cuticle care, nail plate detailing, and design work, including French manicure lines and linear patterns. The high-quality diamond coating ensures durability, smooth operation, and consistent performance. Key Benefits Inverted cone shape for precise detailing and controlled material removal Ideal for cuticle lifting, nail wall work, and sinus cleaning Excellent for French manicure lines and linear nail designs High-quality diamond head for long-lasting performance Compatible with all standard 3/32″ nail drill machines Available Grit Options Fine (Red) – Delicate Skin & Precision Work Gently treats pterygium Lifts non-adherent cuticles Safely opens sinuses Cleans periungual sinuses with minimal trauma Medium (Blue) – Versatile Professional Use Efficiently lifts non-adherent cuticles Opens sinuses with controlled precision Processes side rollers accurately Shapes and smooths nail edges for rounded corners Outlining strokes with high accuracy Controlled detailing during nail build-up procedures Maintenance For safe and long-term use: Wash, clean, sterilize, and thoroughly dry the bit after each client Disinfect using a solution containing at least 70% alcohol Specifications Speed Recommendation: Up to 25,000 RPM Shank Diameter: 3/32″ (2.35 mm) Total Length: 45 mm Head Size: 2.5 × 2.5 mm Bit Shape: Inverted Cone Material (Head): Diamond Material (Shank): Stainless steel