Cone Bit 4.0 mm Fine

Product Name: Cone Bit 4.0 mm Fine
Tooth Density: F (Fine)
Material: Tungsten Carbide
Shank Size: 3/32" (2.35mm)
Shank Length: 38.1mm
Coating: None
Application: Manicure & Pedicure
Advantages: Smooth, precise and safe operation; durable and long-lasting
Packing: 1 pc per tube

The Cone Bit 4.0 mm Fine is a precision carbide bit designed for gentle, controlled refining during manicure and pedicure procedures. With its narrow cone shape, it provides excellent access to tight and deep areas where larger bits cannot reach, making it ideal for detailed surface work and finishing.

The Fine abrasive texture ensures soft, delicate removal without scratching or damaging the natural nail or surrounding skin. It is perfect for final refinement of gel, acrylic and polygel surfaces, smoothing transitions, thinning overlays in sensitive areas and working close to the cuticle and sidewalls.

Main applications include:
• gentle refining of gel, acrylic and polygel
• smoothing uneven surfaces and transitions
• thinning product in delicate zones
• cleaning and contouring sidewalls
• Russian manicure finishing work
• detailed pedicure work on compacted but sensitive skin

The 4.0 mm tip offers high precision while allowing good surface coverage, making it suitable for both small adjustments and controlled shaping. Its design provides excellent stability and minimal vibration even at higher RPM.

Crafted from high-quality tungsten carbide, the bit remains sharp and durable during continuous professional use. It is fully compatible with 3/32" (2.35 mm) e-file handpieces and supports all salon sterilization protocols including autoclave, ultrasonic cleaning and chemical disinfection.

The Cone Bit 4.0 mm Fine is an essential tool for nail technicians who require accuracy, gentle performance and superior control when working in narrow or sensitive areas.

Lnail Precision is a premium professional line of tungsten carbide bits created for technicians who work across all areas: delicate nail prep, pedicure, callus removal, artificial nail correction, and podiatry procedures.
The ultra-fine GU10UF carbide (approx. 6% Co) delivers exceptional hardness, clean cutting performance, low run-out, and excellent stability — making these bits a reliable universal tool for daily use.

Thanks to precise geometry and micro-grain structure, Lnail Precision bits perform equally well in sensitive manicure zones and high-load pedicure or podiatry applications, including work on dense skin, hyperkeratosis, and hard materials such as gel or acrylic. This makes the line suitable not only for beauty salons but also for podiatry professionals using medical-grade equipment.

Each bit undergoes strict European-level quality control with run-out values below 0.02 mm, ensuring smooth operation without vibration. The tools maintain stability at high RPMs, minimize heat generation, and offer maximum comfort to both technician and client.

Lnail Precision bits are fully autoclave-safe at 134°C and withstand repeated sterilization cycles without losing cutting performance or structural integrity. The series includes a wide variety of shapes and cuts — from precise Flame and Needle bits to powerful Barrel and 5-in-1 designs — giving professionals full freedom to choose the right tool for any technique.

Lnail Precision is a universal, stable, and technologically advanced carbide bit series that meets the professional needs of nail technicians, pedicurists, and podologists.