Four-flute ball end milling cutter
The EBF416 series four-flute ball end mill is a professional-grade ball end mill designed for efficient and high-precision surface finishing. It features a 4-flute, 38° helix angle design with a nano-coating and an ultra-fine grain carbide substrate, providing excellent cutting stability, high feed efficiency, and precise spherical forming capability. This product can achieve high surface finishes below Ra0.4μm, making it an ideal choice for finishing curved surfaces of various materials such as steel, stainless steel, aluminum alloys, and mold steel (HRC55 and below). The high temperatures generated during cutting do not significantly affect tool performance, allowing it to maintain a sharp cutting edge when machining materials with hardness up to HRC 60 and above.
| Part number | EBF416600T |
|---|---|
| Material | Ultrafine Tungsten Carbide Alloy |
| Product Name | 4-Flute Tungsten Carbide End Mill – 35º |
| OEM / ODM | Made to your samples or drawings |
| Specifications | R3.0 × 20L × Ø6.0 × 2X |
| Packaging (mm) | 12.5 × 12.5 × 69L |
| Blade Diameter D | R3.0mm |
| Blade Length H | 15.0mm |
| Shank diameter d | Ø6.0mm |
| Overall Length L | 50.0mm |
| Coating | APLUS |
| MOQ | 2 pcs |
| Lead time | 1 week |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
A 2-3μm thick nanocomposite coating is applied to the surface, achieving a hardness of HV3200 and a friction coefficient as low as 0.28. This effectively inhibits built-up edge formation and extends tool life by 2-3 times compared to ordinary tools.
The ball head precision is controlled within ±0.008mm, and the spherical surface roughness Ra≤0.02μm, enabling continuous curved surface machining without tool marks and reducing subsequent polishing processes.
Utilizing carbide with a grain size ≤0.8μm and a substrate hardness of HRC65, this material combines high hardness and toughness, improving chipping resistance by 40% compared to ordinary tools.
Enables progressive smooth entry, improving chip removal efficiency by 35%, preventing chip clogging in complex curved surface machining, and reducing the risk of workpiece scratches.
Symmetrically distributed four flutes evenly distribute cutting force, improving vibration suppression by 40% and enabling high-feed machining with 50% higher efficiency compared to 2-flute tools.
The core diameter is 12% larger than that of ordinary ball end mills, significantly improving tool rigidity and eliminating runout during high-feed machining, ensuring consistency in surface depth and contour.
The cutting edge radius is precisely controlled at 0.01mm, balancing sharpness and wear resistance, adapting to the cutting needs of various materials, and reducing edge chipping.
Utilizing a DIN6535 standard straight shank, it is compatible with various clamping devices such as ER collets and hydraulic chucks, allowing for quick mounting on CNC machining centers and high-speed milling machines, improving tool change efficiency by 20%.
Send your workpiece material and cutter dimensions. We supply standard end mills and special milling cutters made to your samples or drawings.