998V-AA+ Ti18 Coated 4-Flute Ball Nose End Mill for Hardened Steel Machining
998V-AA+
The 998V-AA+ is a high-performance 4-flute ball nose end mill from LV Tool's Demon God 99+ series, engineered for precision machining of high-hardness materials. Featuring an advanced high-silicon Ti18 coating, this carbide end mill delivers exceptional high-temperature stability and superior wear resistance. It is the ideal cutting tool for demanding applications involving tool steel, stainless steel, cast iron, and other hardened steels up to HRC 55. As a leading end mill manufacturer, LV Tool ensures each 998V-AA+ tool provides extended operational life and consistent performance, reducing downtime and improving surface finish quality.
High-Performance 4-Flute Ball Nose End Mill
The 998V-AA+ from LV® Tool's Demon God 99+ series is a premium 4-flute ball nose end mill designed for superior performance in high-hardness material machining. Engineered with precision and manufactured using top-grade carbide rods, this tool is a reliable solution for complex milling operations in the mold & die, automotive, and aerospace industries.
Key Features & Benefits
- Advanced Ti18 Coating: A proprietary high-silicon Ti18 coating provides exceptional thermal stability and oxidation resistance, allowing for higher cutting speeds and feeds.
- Superior Wear Resistance: The robust coating and premium carbide substrate ensure outstanding durability and a significantly extended tool lifespan, minimizing downtime for tool changes.
- Optimized Flute Geometry: The 4-flute design offers a balance of chip evacuation and strength, resulting in a smooth surface finish and high-precision machining results.
- Versatile Applications: Specifically engineered for efficient machining of tough materials, making it a versatile choice for various demanding industrial applications.
Recommended Applications
This ball nose end mill is highly effective for machining the following materials:
- Tool Steel
- Stainless Steel
- Cast Iron
- High-Hardness Steels (up to HRC 55)
- Other Heat-Treated Alloys
Product Specifications
LV Tool, a leading carbide end mill supplier, offers the 998V-AA+ in a comprehensive range of sizes to meet your specific manufacturing needs. Custom OEM/ODM solutions are also available upon request.
| Model | Diameter (R) | Flute Length (mm) | Shank Diameter (mm) | No. of Flutes | Overall Length (mm) |
|---|---|---|---|---|---|
| 0104 | 0.5R | 1.5 | 4 | 4 | 50 |
| 0154 | 0.75R | 2.5 | 4 | 4 | 50 |
| 0204 | 1R | 3 | 4 | 4 | 50 |
| 0254 | 1.25R | 4 | 4 | 4 | 50 |
| 0304 | 1.5R | 5 | 4 | 4 | 50 |
| 0404 | 2R | 6 | 4 | 4 | 50 |
| 0504 | 2.5R | 8 | 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 | 24 | 16 | 4 | 100 |
| 1604 | 8R | 24 | 16 | 4 | 100 |
| 2004 | 10R | 30 | 20 | 4 | 150 |
| 2504 | 12.5R | 35 | 25 | 4 | 150 |
998V-AA+ Ti18 Coated 4-Flute Ball Nose End Mill for Hardened Steel Machining Professional Precision Carbide End Mills and Cutting Tools Manufacturing
LV Tool provides 998V-AA+ Ti18 Coated 4-Flute Ball Nose End Mill for Hardened Steel 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.

