Carbide four-flute milling cutter
The ET40A series is a professional-grade end mill designed for heavy-duty roughing applications. It features a wavy chip-breaking design and an optimized 38° helix angle, combined with a high-toughness carbide substrate and a nano-coating. Its unique flute design allows for higher feed per tooth. It is widely used in aerospace, automotive, and mold making industries. In practical operation, it achieves high-efficiency cutting with large allowances and high feed rates, making it ideal for roughing molds, deep grooving of steel parts, and contour milling of large components. The tool maintains stability under high speeds and high loads, avoiding vibration and chipping. This ensures consistent and reliable machining, making it a good choice for various applications.
| Part number | ET40A |
|---|---|
| Material | Ultrafine particle tungsten carbide alloy |
| Product Name | Heavy-duty end mills (roughing end mills) |
| OEM / ODM | Made to your samples or drawings |
| Specifications | Ø10.0 × 100L × Ø10.0 × 4X |
| Packaging (mm) | 23.5 × 18.5 × 110L |
| Blade Diameter D | Ø10.0mm |
| Blade Length H | 100.0mm |
| Shank diameter d | Ø10.0mm |
| Overall Length L | 100.0mm |
| Coating | TiAlN |
| MOQ | 2 pcs |
| Lead time | 1 week |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
High temperature resistance up to 1200°C, surface hardness HV3200, and wear resistance improved by 2.5 times, suitable for high-speed dry or semi-dry cutting.
Transforms continuous cutting into intermittent cutting, effectively dispersing cutting forces, reducing vibration, and improving impact resistance by 40%, suitable for large-mass roughing.
Progressive entry reduces tool impact while optimizing chip flute space, improving chip removal efficiency by 30% and preventing chip clogging.
Edge radius controlled within 0.03mm, further improving chip resistance by 25%, adapting to harsh conditions of heavy cutting.
Friction coefficient of only 0.28, reducing built-up edge formation, extending tool life, and improving surface finish.
Core diameter is 15% larger than ordinary end mills, significantly improving tool rigidity and able to withstand greater radial cutting forces.
Combining high hardness (HRC64) with high toughness, its resistance to chipping is twice that of ordinary end mills.
The flute shape is optimized for hydrodynamics, resulting in smoother chip removal and preventing chip clogging during deep groove machining.
Send your workpiece material and cutter dimensions. We supply standard end mills and special milling cutters made to your samples or drawings.