998V-AANB 4-Flute Ball End Mill with NACO-BLUE Coating for High-Speed Dry Machining
998V-AANB
The 998V-AANB is a high-performance 4-flute ball end mill from the 99NB series, engineered by LV® Tool for precision machining. Featuring a proprietary NACO-BLUE coating, this carbide end mill is optimized for dry machining applications, providing exceptional high-temperature resistance and superior wear resistance for an extended service life. It excels in processing a wide range of materials, including tool steel, alloy steel, stainless steel, and cast iron. The tool's high-precision diameter tolerance ensures excellent cutting stability and a superior surface finish, making it an ideal choice for mold and die manufacturing and aerospace components.
High-Performance 4-Flute Ball End Mill for Dry Machining
The 998V-AANB from LV® Tool's 99NB series is a premium 4-flute ball end mill specifically engineered for high-speed dry machining. Its advanced design and proprietary coating technology deliver exceptional performance and tool longevity in demanding industrial environments. As a leading carbide end mill manufacturer, we ensure every tool provides superior precision and reliability.
Key Features & Benefits
- NACO-BLUE Coating: The tool is coated with a specialized NACO-BLUE layer, optimized for dry machining. This advanced coating provides outstanding high-temperature resistance, minimizing tool wear even without coolant.
- Extended Service Life: The combination of premium tungsten carbide material and the wear-resistant coating significantly extends the tool's service life, reducing replacement frequency and overall production costs.
- Superior Cutting Stability: Manufactured with high-precision tool diameter tolerance, the 998V-AANB ensures excellent cutting stability, resulting in improved workpiece accuracy and a superior surface finish.
- Versatile Material Application: This ball end mill is highly effective for processing a wide range of materials, making it a versatile solution for various machining tasks.
Applicable Materials
This carbide end mill is ideal for machining the following materials:
- Tool Steel
- Alloy Steel
- Stainless Steel
- Cast Iron
- Welding Repair Steel
Technical Specifications
The 998V-AANB series is available in a wide range of sizes to meet your specific application needs. Please refer to the table below for detailed dimensions. For custom specifications or wholesale inquiries, please contact our technical team.
| Model | Diameter (R) | Blade Length (mm) | Shank Diameter (mm) | Number of Flutes | Overall Length (mm) |
|---|---|---|---|---|---|
| 0104 | 0.5R | 2 | 4 | 4 | 50 |
| 0154 | 0.75R | 3 | 4 | 4 | 50 |
| 0204 | 1R | 4 | 4 | 4 | 50 |
| 0254 | 1.25R | 5 | 4 | 4 | 50 |
| 0304 | 1.5R | 5.5 | 4 | 4 | 50 |
| 0404 | 2R | 6 | 4 | 4 | 50 |
| 0504 | 2.5R | 9 | 6 | 4 | 50 |
| 0604 | 3R | 9 | 6 | 4 | 50 |
| 0614 | 3R | 9 | 6 | 4 | 75 |
| 0804 | 4R | 16 | 8 | 4 | 75 |
| 1004 | 5R | 20 | 10 | 4 | 75 |
| 1014 | 5R | 20 | 10 | 4 | 100 |
| 1204 | 6R | 24 | 12 | 4 | 75 |
| 1214 | 6R | 24 | 12 | 4 | 100 |
| 1404 | 7R | 28 | 16 | 4 | 100 |
| 1604 | 8R | 32 | 16 | 4 | 100 |
| 2004 | 10R | 40 | 20 | 4 | 150 |
| 2504 | 12.5R | 50 | 25 | 4 | 150 |
Download Catalog
For a comprehensive overview of the 998V series, including material specifications and cutting parameters, please view our single-page catalog.

998V-AANB 4-Flute Ball End Mill with NACO-BLUE Coating for High-Speed Dry Machining Professional Precision Carbide End Mills and Cutting Tools Manufacturing
LV Tool provides 998V-AANB 4-Flute Ball End Mill with NACO-BLUE Coating for High-Speed Dry 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.

