tungsten copper end mill tungsten copper end mill tungsten copper end mill

Tungsten Copper 4 Flutes Corner Radius End Mill

SAMHO 4-Flute Corner Radius End Mill — The Ultimate Tool for High-Precision Tungsten-Copper Machining

Stop letting high-hardness, high-abrasion materials reduce your machining efficiency and increase costs. The SAMHO 4-flute corner radius bit end mill is engineered for precision machining of tungsten-copper and other wear-resistant, high-hardness materials. Its advanced high-adhesion coating ensures exceptional durability and stability, enabling efficient cutting over extended periods.

Applicable Materials: Designed specifically for tungsten-copper, suitable for machining electrodes, precision components, and complex mold cavities.

Ultimate Durability: The ultra-fine grain cemented carbide substrate, combined with a high-wear-resistant coating, significantly extends tool life.

Precision: Strict dimensional tolerances guarantee machining repeatability and surface quality, meeting the demands of high-precision applications.

In tungsten-copper machining, cutting tools must meet extremely high standards for precision and durability. They need to deliver ultra-high machining accuracy while withstanding the material’s hardness and high wear. SAMHO 4-flute rounded nose end mills for tungsten copper (D3R0.2–D12R1 mm) are engineered to meet these demanding requirements. They improve CNC machining efficiency and surface quality, helping operators achieve precise, reliable results when processing tungsten-copper parts.


Advanced Technical Features

High-Adhesion Coating Technology: Achieving Ultra-Long Tool Life

These tools feature high-performance coatings that provide exceptional wear resistance and stability when machining tungsten-copper materials.

  • High Wear Resistance: Reduces tool wear during continuous, high-speed cutting, keeping the cutting edges sharp for extended periods.
  • Robust Chipping Resistance: The coating bonds strongly with the carbide substrate, withstanding impact loads and high-frequency vibrations.

4-Flute Corner Radius Geometry: Optimized for Tungsten-Copper Machining

The 4-flute corner radius design improves cutting stability while maintaining structural strength. It is ideal for precision components and demanding mold applications.

  • Enhanced Cutting Edge Strength: Rounded transitions disperse cutting stresses and reduce the risk of edge chipping.
  • Improved Surface Finish: Minimizes tool marks and chatter, ensuring a smooth, consistent machined surface.
  • Perfect for Complex Geometries: Suitable for tungsten-copper electrodes, precision inserts, and intricate cavity features.

Efficient 4-Flute “Smooth Cutting” Design

The 4-flute structure balances rigidity and feed efficiency, enabling stable and productive machining.

  • High Chip Evacuation: Optimized flute geometry clears tungsten-copper chips efficiently, preventing recutting.
  • Reduced Cutting Load: Load sharing among four flutes lowers stress on each cutting edge, improving stability.
  • Heat Management: Effective heat dissipation prevents localized overheating and material performance degradation.

High-Strength Micro-Grain Carbide Substrate + Precision Manufacturing

Made from a high-toughness, micro-grain carbide substrate and precision-ground to tight tolerances, these end mills deliver reliable and repeatable results.

  • Strict Dimensional Control: Tolerances within ±0.01 mm ensure consistent quality for high-precision electrodes and components.
  • Superior Fracture Resistance: Extends tool life during intermittent or high-load operations.
  • Consistent Batch Performance: Ensures repeatable precision and stable results in large-volume production.

Target Applications & Industries

This series of 4-flute corner radius end mills is specifically engineered for tungsten copper machining and is ideal for a wide range of applications:

  • Precision Machining of Tungsten-Copper Electrodes: Delivers high dimensional accuracy and superior surface quality.
  • Mold and Complex Cavity Deep-Hole Machining: Designed for stable and durable performance in deep cavity cutting.
  • Machining High-Hardness, Wear-Resistant Materials: Effectively handles the extreme hardness and high wear characteristics of tungsten-copper.
  • High-Precision Contour and Complex Structure Machining: Perfect for intricate details, complex surfaces, and precision parts.

Why Source Wholesale from SAMHO?

OEM/ODM Support: Tool specifications can be customized to meet specific customer requirements, providing flexibility for various machining scenarios.

Ultra-High Dimensional Precision: Shank diameter tolerances are strictly controlled within 0–0.005 mm, ensuring exceptional clamping stability and repeatable machining performance.

Superior Machinability: Specifically designed for tungsten-copper, the 4-flute corner radius geometry delivers high precision, low vibration, and excellent surface finish.

High Wear-Resistant Coating: Advanced coating technology extends tool life and withstands machining of high-hardness, high-wear materials.

Stable and Reliable: Ideal for deep cavities, complex geometries, and precision parts, ensuring consistent performance in mass production.

Recommended Materials for Machining (Highly Recommended: ⭐️ | Recommended: ⭕️ | Suggested: )

DIE STEEL Grade
Carbon steels (S45C/S55C)
Alloy steels (SK/SCM/SUS)
Prehardened steels (NAK/HPM)
Hardened steels (~55/~60/~70HRC)
SPECIAL MATERIAL
Aluminum alloys
Graphite
Copper
Plastics
Tungsten copper
Carbon fiber
Titanium alloys
Heat resistant alloys
Cemented carbide
Hard brittle (non-metallic) material

corner radius end mill

Total 35 models

Model Number Outside Diameter Length of Cut Corner Radius Shank Taper Angle Overall Length Number of Flutes Shank Diameter In Stock
CGSR4-03002090-3 3 9 0.2 50 4 3
CGSR4-03002090 3 9 0.2 15° 50 4 4
CGSR4-03005090-3 3 9 0.5 15° 50 4 3
CGSR4-03005090 3 9 0.5 15° 50 4 4
CGSR4-04001120 4 12 0.1 50 4 4
CGSR4-04001120-75 4 12 0.1 75 4 4
CGSR4-04001120-100 4 12 0.1 100 4 4
CGSR4-04002120 4 12 0.2 50 4 4
CGSR4-04002120-75 4 12 0.2 75 4 4
CGSR4-04002120-100 4 12 0.2 100 4 4
CGSR4-04005120 4 12 0.5 50 4 4
CGSR4-04005120-75 4 12 0.5 75 4 4
CGSR4-04005120-100 4 12 0.5 100 4 4
CGSR4-06002160 6 16 0.2 60 4 6
CGSR4-06002160-75 6 16 0.2 75 4 6
CGSR4-06002160-100 6 16 0.2 100 4 6
CGSR4-06005160 6 16 0.5 50 4 6
CGSR4-06005160-75 6 16 0.5 75 4 6
CGSR4-06005160-100 6 16 0.5 100 4 6
CGSR4-0805200-75 8 20 0.5 75 4 8
CGSR4-0805000-100 8 20 0.5 100 4 8
CGSR4-0805200-150 8 20 0.5 150 4 8
CGSR4-08010200-75 8 20 1 75 4 8
CGSR4-08010200-100 8 20 1 100 4 8
CGSR4-08010200-150 8 20 1 150 4 8
CGSR4-10005250-75 10 25 0.5 75 4 10
CGSR4-10005250-100 10 25 0.5 100 4 10
CGSR4-10005250-150 10 25 0.5 150 4 10
CGSR4-10010250-75 10 25 1 75 4 10
CGSR4-10010250-100 10 25 1 100 4 10
CGSR4-10010250-150 10 25 1 150 4 10
CGSR4-12005300-100 12 30 0.5 100 4 12
CGSR4-12005300-150 12 30 0.5 150 4 12
CGSR4-12010300-100 12 30 1 100 4 12
CGSR4-12010300-150 12 30 1 150 4 12
CGSR4 Side Milling
Work Material Tungsten Copper
(mm) Diameter (min-1) Speed (mm/min) Feed
D 3 11000 1800
D 4 10000 2000
D 6 9000 2400
D 8 8000 2600
D 10 7000 2600
D 12 6500 2600
Note:
*Decrease both spindle speed and feed rate proportionally when the milling parameters exceed the machine’s maximum
spindlespeed;
*Recommend using a non-contact measuring device to avoid damaging the precision tip point.
Download 2: Tungsten Copper 4 Flutes Corner Radius End Mill File

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