Tapered ball end mill
The EBA426 series is a high-performance tapered ball end mill designed for efficient and precise machining of bevels, complex surfaces, and mold corner clearing. It features a 4-flute, 38° helix angle design with a TiN gold coating and a high-toughness, ultra-fine grain cemented carbide substrate. It combines precise taper forming capability, high feed efficiency, and high-gloss finish, making it ideal for machining bevels, complex contours, and mold corner clearing in various materials including steel, stainless steel, aluminum alloys, and mold steel (HRC55 and below). It provides reliable assurance for your efficient production. Its design and materials enable it to perform exceptionally well under high-speed cutting conditions.
| Part number | EBA426060T |
|---|---|
| Material | Ultrafine Tungsten Carbide Alloy |
| Product Name | 4-Flute Tapered Ball End Mill – 38º |
| OEM / ODM | Made to your samples or drawings |
| Specifications | R3.0 × 20L × Ø6.0 × 4X |
| 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.
Taper angle accuracy ±0.05°, ball-end accuracy ±0.008mm, taper surface roughness Ra≤0.02μm, enabling continuous curved surface machining without tool marks and reducing subsequent polishing processes.
A 2-3μm thick TiN nano-coating is applied to the surface, achieving a hardness of HV2800 and a friction coefficient as low as 0.3, effectively inhibiting built-up edge formation and extending tool life by 2-2.5 times compared to uncoated tools.
Utilizing cemented carbide with a grain size ≤0.8μm and a substrate hardness of HRC65, combining high hardness and toughness, improving chipping resistance by 40% compared to ordinary tools.
Achieves progressive smooth entry, improving chip removal efficiency by 35%, avoiding chip clogging in deep cavity or corner clearing operations, 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 10% larger than that of ordinary tapered tools, resulting in a smooth transition during diameter changes and significantly improved tool rigidity, eliminating runout during high-feed machining.
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%.
The coating withstands temperatures up to 800°C, maintaining excellent wear resistance even under high-speed dry or semi-dry cutting conditions, reducing the risk of coating peeling.
Send your workpiece material and cutter dimensions. We supply standard end mills and special milling cutters made to your samples or drawings.