Diamond Nail Drill Bits D-104 shape bullet, head size 5*15 mm The Diamond Nail Drill Bits, crafted in a bullet shape with precision-pointed tips offer unparalleled levels of precision and performance. These bits are widely favored used in pedicures Fine Bits (Red) ideal for: Treating pterygium. Gently raising the non-adjacent cuticle. Safely opening sinuses. Lifting sensitive cuticles. Medium Bits (Blue) perfect for: Raising the non-adjacent cuticle. Opening sinuses. Lifting cuticles before strengthening the nail plate with bio gel or applying acrylic. Cleaning the nail wall. Coarse bits (green) are recommended for: Cleaning and shaping nail plates. Lifting and removing rough cuticles. Cleaning nail grooves. Treating hyperkeratosis, small corns, and calluses. Specifications: Speed Recommendation: Up to 25,000 RPM. Shank Diameter: 3/32” Head Dimensions: 5x15 mm Bit Shape: Bullet Material Head: Diamond