Cone Bit 4.0 mm Extra Coarse

Product Name: Cone Bit 4.0 mm Extra Coarse
Tooth Density: XC (Extra Coarse )
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 Extra Coarse is a high-performance carbide drill bit developed for extremely fast and efficient material removal. Its narrow cone-shaped profile provides exceptional precision and access, making it ideal for working in deep, narrow, or hard-to-reach areas where traditional bits cannot perform effectively.

With its Extra Coarse abrasive pattern, this bit is specifically designed for aggressive reduction of thick gel, acrylic, polygel, hard builder layers and pedicure callus. It cuts quickly and cleanly, allowing technicians to speed up correction procedures, debulk reinforced overlays and break down stubborn product with minimal effort.

Common applications include:
• ultra-fast gel and acrylic removal
• aggressive debulking during refill
• reducing thick builder bases
• pedicure: rough callus, hard skin and compacted areas
• shaping and thinning material in narrow zones
• working along tight sidewalls and deep grooves

The 4.0 mm tip size provides a perfect balance between accessibility and removal power. It allows the technician to reach areas such as sidewalls, lower arches, and pedicure-specific zones with precision, without compromising speed.

Made from durable, wear-resistant tungsten carbide, the bit maintains sharpness even during prolonged heavy use. It ensures stable operation with minimal vibration, offering comfort and safety for both the client and technician.

The bit is compatible with all 3/32" (2.35 mm) e-file handpieces and supports all sterilization methods including autoclave, ultrasonic cleaning and chemical disinfection.

The Cone Bit 4.0 mm Extra Coarse is an essential tool for professionals who require maximum removal speed, precision in tight areas and reliable performance in salon workloads — ideal for both manicure corrections and intensive pedicure treatments.

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.