The Tornado Diamond Nail Drill Bit model D139T features a pointed tip and a spiral (twisted) flame design that creates airflow during use, effectively blowing away dust and debris. This innovative structure helps prevent grease buildup and clogging, making the bit more durable and longer-lasting than standard diamond bits. One of the most popular shapes for professional manicure and pedicure, this tornado flame bit provides precise control when working on both nails and skin. It is ideal for shaping and cleaning the nail plate, lifting and removing cuticles, cleaning nail grooves, and treating thickened skin, small corns, and calluses. Grit Recommendations Fine (Red) Lifting and treating sensitive cuticles Polishing the cuticle area after cuticle removal Delicate work on thin or sensitive skin Medium (Blue) Lifting cuticles before nail plate strengthening Preparing nails for bio gel or acrylic application Cleaning nail walls and side grooves Key Benefits Spiral tornado design actively removes dust Resistant to clogging and grease buildup Enhanced durability compared to regular diamond bits Precise control for professional e-file procedures Suitable for both manicure and pedicure Maintenance & Care After each use: Wash, clean, sterilize, and thoroughly dry the bit Disinfect using a 70% alcohol solution Follow professional sterilization standards to extend tool life Specifications Recommended speed: up to 25,000 RPM Shank diameter: 3/32″ (universal fit) Head size: 2.1 × 10 mm Total length: 45 mm Grit options: Fine (Red), Medium (Blue) Shape: Pointed Flame, Tornado Head material: Diamond Shank material: Stainless steel