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

Tungsten Copper 2 Flutes Long Neck Flat End Mill

SAMHO Diamond-Coated 4-Flute Flat End Mill — The Ultimate Tool for Precision Tungsten-Copper Machining

Stop letting high-hardness, brittle materials reduce your production efficiency. The SAMHO 4-flute flat end mill bit is specifically designed for high-precision machining of tungsten-copper materials. Its advanced, high-adhesion diamond coating delivers exceptional durability and resists wear, even in highly abrasive machining environments.

  • Applicable Materials: Optimized for high-hardness, brittle tungsten-copper components.
  • Ultimate Durability: Built with an ultra-fine-grained carbide substrate and a chemically inert diamond coating, resistant to wear and micro-chipping.
  • High-Precision Machining: Tight dimensional tolerances within ±0.01 mm ensure consistent part quality and surface finish in batch production.

In tungsten-copper machining, tool requirements are extremely demanding, requiring not only high precision but also superior wear resistance and stability. The SAMHO 2-flute long neck flat end mill (D0.2–D2 mm) is specifically designed to meet these standards. It helps CNC operators efficiently and reliably machine tungsten-copper materials, enabling the high-quality forming of intricate and complex structures.


Advanced Technical Features

High-Adhesion Diamond Coating for Ultra-Long Tool Life
Our proprietary diamond coating provides exceptional hardness and chemical inertness:

  • Wear Resistance: Keeps the cutting edge sharp even during long, continuous tungsten-copper machining.
  • Micro-Chipping Prevention: Ensures the coating stays firmly bonded to the carbide substrate under high cutting loads and high-speed friction.

Long-Neck, Flat-Bottom Design for Precision Tungsten-Copper Machining
The precision long-neck geometry allows easy access to deep cavities, narrow slots, and complex mold features:

  • Superior Surface Finish: Delivers smooth tungsten-copper surfaces while minimizing burrs and tool marks.
  • Precision Profiling: Enables high-accuracy machining of intricate details, including small holes, grooves, and complex shapes.

High-Efficiency Dual-Flute “Cold-Cutting” Geometry
The sharp, dual-flute design reduces heat and improves chip removal efficiency:

  • Maximized Chip Evacuation: Quickly clears dust and debris from high-hardness tungsten-copper.
  • Reduced Cutting Load: Lowers heat buildup, preventing brittle tungsten-copper from cracking under thermal stress.

Ultra-Fine Grain Carbide Substrate with Precision Grinding
Crafted from ultra-fine grain carbide and precision-ground for tungsten-copper applications:

  • Tight Dimensional Control: Maintains tolerances within ±0.01 mm for consistent batch production.
  • Enhanced Fracture Resistance: Withstands highly abrasive tungsten-copper machining, extending tool life.

Target Applications & Industries

This series of tungsten-copper-specific 2-flute long neck flat end mill bits is widely applicable to:

  • Precision tungsten-copper machining: Ideal for high-precision machining of electrodes, contacts, and functional components.
  • Deep cavity and slot machining: Handles complex mold cavities, deep holes, and narrow slots with ease.
  • High-hardness tungsten-copper and difficult-to-machine alloys: Efficiently machines tungsten-copper materials while maintaining tool sharpness and excellent surface quality.
  • High-precision contour and complex structure machining: Supports accurate machining of small holes, grooves, and intricate shapes.

Why Source Wholesale from SAMHO?

OEM / ODM Support: Provides custom solutions and adapts to a wide range of tungsten-copper machining processes.

Ultra-High Precision Shank: Diameter tolerance of 0–0.005 mm ensures stable clamping and repeatable accuracy.

Tungsten-Copper Specific Design: Optimized geometry and diamond coating improve cutting efficiency and extend tool life.

High-Precision Machining: Perfect for complex mold cavities, deep pockets, fine holes, and intricate contours.

Reliable Performance: Engineered for consistent results in high-hardness tungsten-copper and other difficult-to-machine alloys.

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

2 flute flat long neck end mill

Total 31 models

Model Number Outside Diameter Length Of Cut Effective Length Shank Taper Angle Overall Length Number Of Flutes Shank Diameter In Stock
CGLS2-002010 0.2 0.4 1 15° 50 2 4
CGLS2-002015 0.2 0.4 1.5 15° 50 2 4
CGLS2-003015 0.3 0.6 1.5 15° 50 2 4
CGLS2-003020 0.3 0.6 2 15° 50 2 4
CGLS2-004020 0.4 0.8 2 15° 50 2 4
CGLS2-004040 0.4 0.8 4 15° 50 2 4
CGLS2-004060 0.4 0.8 6 15° 50 2 4
CGLS2-005020 0.5 1 2 15° 50 2 4
CGLS2-005040 0.5 1 4 15° 50 2 4
CGLS2-005060 0.5 1 6 15° 50 2 4
CGLS2-006020 0.6 1.2 2 15° 50 2 4
CGLS2-006040 0.6 1.2 4 15° 50 2 4
CGLS2-006060 0.6 1.2 6 15° 50 2 4
CGLS2-006080 0.6 1.2 8 15° 50 2 4
CGLS2-006100 0.6 1.2 10 15° 50 2 4
CGLS2-010040 1 2 4 15° 50 2 4
CGLS2-010060 1 2 6 15° 50 2 4
CGLS2-010080 1 2 8 15° 50 2 4
CGLS2-010100 1 2 10 15° 50 2 4
CGLS2-010120 1 2 12 15° 50 2 4
CGLS2-010160 1 2 16 15° 50 2 4
CGLS2-010200 1 2 20 15° 50 2 4
CGLS2-015060 1.5 3 6 15° 50 2 4
CGLS2-015100 1.5 3 10 15° 50 2 4
CGLS2-015160 1.5 3 16 15° 50 2 4
CGLS2-015200 1.5 3 20 15° 50 2 4
CGLS2-020080 2 4 8 15° 50 2 4
CGLS2-020100 2 4 10 15° 50 2 4
CGLS2-020120 2 4 12 15° 50 2 4
CGLS2-020160 2 4 16 15° 50 2 4
CGLS2-020200 2 4 20 15° 50 2 4

Contour Milling Parameters

Work Material Tungsten Copper
(mm) Diameter (mm) Effective Length (min-1) Speed (mm/min) Feed
D 0.2 1 30000 120
D 0.2 1.5 30000 100
D 0.3 1.5 26000 120
D 0.3 2 22000 100
D 0.4 2 24000 200
D 0.4 4 18000 150
D 0.4 6 16000 100
D 0.5 2 18000 200
D 0.5 4 16000 150
D 0.5 6 15000 100
D 0.6 2 20000 500
D 0.6 4 16000 200
D 0.6 6 16000 150
D 0.6 8 14000 100
D 0.6 10 14000 80
D 1.0 4 12000 800
D 1.0 6 10000 600
D 1.0 8 9000 300
D 1.0 10 8000 120
D 1.0 12 8000 100
D 1.0 16 7000 80
D 1.0 20 7000 60
D 1.5 6 11000 1000
D 1.5 10 9000 600
D 1.5 16 8000 300
D 1.5 20 7000 100
D 2.0 8 10000 1500
D 2.0 10 9000 1000
D 2.0 12 9000 800
D 2.0 16 8000 600
D 2.0 20 7000 300
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 2 Flutes Long Neck Flat End Mill File

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