778V-A 2-Flute Ball Nose End Mill with S-FIRE Coating for High-Precision Machining
778V-A
The 778V-A is a high-performance 2-flute ball nose end mill from LV® Tool's 77 series, engineered for superior precision in demanding machining applications. This tool features exceptional wear resistance and an extended operational life, backed by a precise diameter tolerance that ensures consistent cutting stability. Enhanced with a high-quality S-FIRE coating, the 778V-A excels in wet cutting environments, producing an impeccably smooth surface finish while significantly minimizing burrs. As a versatile carbide end mill, it is expertly designed for machining a wide array of materials, including carbon steel, alloy steel, tool steel, stainless steel, and cast iron, making it an ideal choice for manufacturers seeking reliability and performance.
High-Performance 2-Flute Ball Nose End Mill
The 778V-A is a premium 2-flute ball nose end mill from the LV® Tool 77 series, meticulously engineered for high-precision machining. Its design focuses on delivering excellent wear resistance for an extended tool life and superior cutting stability, which is achieved through a strict diameter tolerance control. This ensures consistent performance for manufacturers and machining job shops.
Advanced S-FIRE Coating for Wet Cutting
A key feature of the 778V-A is its high-quality S-FIRE coating, which is specifically optimized for wet cutting applications. The coating's smooth film surface effectively reduces friction and heat, leading to a superior surface finish on the workpiece and a significant reduction in burrs. This makes it an ideal solution for finishing operations where quality is paramount.
Key Features and Benefits
- Excellent Wear Resistance: Constructed from premium carbide and enhanced with S-FIRE coating to ensure a long and reliable tool life, reducing operational costs.
- High Precision Tolerance: Guarantees exceptional cutting stability and accuracy, making it suitable for complex and intricate machining tasks.
- Optimized for Wet Cutting: The S-FIRE coating enhances performance and chip evacuation in coolant-based machining environments.
- Superior Surface Finish: The smooth coating properties effectively prevent material adhesion and reduce the formation of burrs.
Applicable Materials
This versatile carbide end mill is suitable for machining a wide range of materials, including:
- Carbon Steel
- Alloy Steel
- Tool Steel
- Stainless Steel
- Cast Iron
Detailed Specifications
| Model | Diameter (R) | Flute Length (mm) | Shank Diameter (mm) | Flutes | Overall Length (mm) |
|---|---|---|---|---|---|
| 010203 | 0.5R | 2 | 3 | 2 | 50 |
| 015203 | 0.75R | 3 | 3 | 2 | 50 |
| 020203 | 1R | 4 | 3 | 2 | 50 |
| 025203 | 1.25R | 5 | 3 | 2 | 50 |
| 030203 | 1.5R | 6 | 3 | 2 | 50 |
| 010204 | 0.5R | 2 | 4 | 2 | 50 |
| 015204 | 0.75R | 3 | 4 | 2 | 50 |
| 020204 | 1R | 5 | 4 | 2 | 50 |
| 025204 | 1.25R | 5 | 4 | 2 | 50 |
| 030204 | 1.5R | 6 | 4 | 2 | 50 |
| 035204 | 1.75R | 7 | 4 | 2 | 50 |
| 040204 | 2R | 8 | 4 | 2 | 50 |
| 010206 | 0.5R | 2 | 6 | 2 | 50 |
| 015206 | 0.75R | 3 | 6 | 2 | 50 |
| 020206 | 1R | 4 | 6 | 2 | 50 |
| 025206 | 1.25R | 5 | 6 | 2 | 50 |
| 030206 | 1.5R | 6 | 6 | 2 | 50 |
| 035206 | 1.75R | 7 | 6 | 2 | 50 |
| 040206 | 2R | 8 | 6 | 2 | 50 |
| 045206 | 2.25R | 9 | 6 | 2 | 50 |
| 050206 | 2.5R | 10 | 6 | 2 | 50 |
| 055206 | 2.75R | 11 | 6 | 2 | 50 |
| 060206 | 3R | 12 | 6 | 2 | 50 |
| 070208 | 3.5R | 14 | 8 | 2 | 50 |
| 080208 | 4R | 16 | 8 | 2 | 50 |
| 090210 | 4.5R | 18 | 10 | 2 | 50 |
| 100210 | 5R | 20 | 10 | 2 | 50 |
| 110212 | 5.5R | 22 | 12 | 2 | 50 |
| 120212 | 6R | 24 | 12 | 2 | 50 |
| 140216 | 7R | 28 | 16 | 2 | 50 |
| 160216 | 8R | 32 | 16 | 2 | 50 |
| 180220 | 9R | 36 | 20 | 2 | 50 |
| 200220 | 10R | 40 | 20 | 2 | 50 |
Product Catalog
For a comprehensive overview of the 77 series, please refer to our detailed specification sheet.

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778V-A 2-Flute Ball Nose End Mill with S-FIRE Coating for High-Precision Machining Professional Precision Carbide End Mills and Cutting Tools Manufacturing
LV Tool provides 778V-A 2-Flute Ball Nose End Mill with S-FIRE Coating for High-Precision Machining for buyers who need dependable precision carbide end mills and cutting tools in professional CNC machining environments. This product supports manufacturers, machine shops, and tooling distributors looking for stable cutting performance, accurate dimensions, and reliable results across demanding materials and production conditions.
Our carbide tools are produced with premium materials, precision CNC grinding, coating expertise, and ISO 9001-certified quality control. This helps customers improve tool life, surface finish, chip evacuation, cutting stability, and machining efficiency in applications such as mold making, automotive parts, aerospace components, electronics, and precision machinery.
As a Taiwan manufacturer with OEM ODM support, LV Tool helps buyers evaluate product fit, standard dimensions, custom tooling needs, and long-term supply requirements. We focus on practical cutting tool solutions that reduce downtime, control cost, and support consistent production quality.


