Packing & Quantity: Packed in designed individual box, 1 piece, dustproof, portable, easy to store & carry, for both personal and home use anytime and anywhere. Please note that to prevent breaking, the nail drill bits cannot be dropped.Two-Way Rotation: The ability to rotate in both directions offers convenience and flexibility during operation. You can choose between clockwise or counterclockwise rotation based on your preference, enabling precise control and optimal results. 3/32" tungsten carbide shank, suits most professional electric nail drills machine.5in1 Nail Bit | Grit: Medium | Design: Flat Top 5 in 1 teeth | Color: Orginal | 3/32"(2.35mm) Shank, two-way rotation, 7*15mm(0.27*0.59inch) | User: Experienced, Nail Tech, beginner15mm length Flat top 5-in-1: Same as regular 5 in 1 bits, sharp cross cut and 3-level teeth design, each level for different usag, uniformly distributed teeth, efficient work and less dust and smooth, inspected for the concentricity to strictly control the vibration range within 0.03-0.05mm. Flat top design sharp edges, but reach to nail edges be careful.Professional carbide nail accessories: Made of YG6X premium tungsten carbide, nail drill bit ensure low vibration, low heat, durability and a long lifespan, Whether you use them frequently or occasionally, these bits maintain their sharpness. Suitable for natural nails, artificial nails, acrylic nails, gel nails, nail extensions, polygel, cuticle removal, nail polishing, nail shaping, dip powder, etc.