2 flute flat end mill 2 flute flat end mill 2 flute flat end mill

End Mill for Copper 2 flute flat end mill

Achieve Burr-Free Precision with SAMHO DLC-Coated 2-Flute Flat End Mills

Tackle sticky and ductile materials with ease using the SAMHO CGS4 Series. Specifically engineered for red copper, aluminum alloys, and resins, these 2-flute flat end mills feature an advanced DLC (Diamond-Like Carbon) coating. This technology provides a super-hard, low-friction surface that eliminates material smearing and built-up edge (BUE), ensuring consistent accuracy in high-speed CNC operations.

  • Anti-Adhesion: DLC coating prevents “gumming” in copper and soft plastics.

  • Mirror-Finish Flutes: Polished geometry for superior chip flow and surface quality.

  • Square Geometry: Ideal for precise slotting, shoulder milling, and flat-bottom cuts.

  • Wholesale Direct: High-performance non-ferrous tooling at competitive factory prices.

In the production of EDM electrodes and aluminum components, tool adhesion is the primary cause of poor surface finish and tool breakage. The SAMHO DLC-coated flat end mill combines a solid lubricant surface with high-rigidity carbide to deliver mirror-like finishes in non-ferrous machining.


Advanced Technical Features

  • DLC Coating for Ultra-Low Friction & Non-Stick Cutting
    The DLC coating provides exceptionally low friction and high surface hardness, essential when machining red copper and aluminum:
    • Resists Built-Up Edge (BUE): Prevents material from welding to the cutting edge
    • Reduces Cutting Heat: Allows higher speeds and feeds under dry or MQL conditions
  • Optimized 2-Flute Design for Rapid Chip Evacuation
    Ductile materials like pure copper and soft resins produce long, gummy chips. The open 2-flute geometry ensures:
    • Maximum Chip Space: Prevents clogging and chip recutting in deep slots
    • Clean Cutting Action: Burr-free edges and accurate vertical shoulders
  • Mirror-Polished Flutes for Superior Surface Finish
    Mirror-polished flute surfaces reduce friction during chip flow, ensuring:
    • Dimensional Accuracy: Minimizes tool deflection caused by radial forces
    • High Surface Quality: Delivers out-of-the-box mirror finishes on high-purity copper parts
  • Application-Specific Cutting Parameters
    SAMHO provides field-tested cutting data for copper, aluminum, and resins to optimize RPM, feed rates, and minimize setup time and tool failure risk

Target Applications & Industries

Applications:

  • EDM Electrode Machining: Precision milling of red copper and graphite-composite electrodes
  • Aluminum Component Manufacturing: High-speed slotting and contouring of 6061/7075 alloys
  • Resin & Plastic Tooling: Clean, smear-free cutting of resin-based materials and soft plastics

Industries:

  • Mold & Die
  • Automotive
  • Electronics (Heat Sinks)
  • Medical Device Manufacturing

Pro-Tips for Machining Ductile Materials

  • Coolant Strategy: Use MQL or high-pressure air blast to enhance chip removal and surface finish
  • High-Speed Stability: Ensure balanced tool holders (Shrink-fit or Hydraulic) to minimize runout
  • Tool Maintenance: Protect the ultra-sharp DLC edge with non-contact tool setters to prevent micro-chipping

Why Choose SAMHO as Your Wholesale Partner?

  • Massive Model Selection: 16+ specialized models cover slotting and shoulder milling needs
  • Unbeatable Wholesale Pricing: Factory-direct pricing for bulk procurement and global distributors
  • OEM & Customization: Custom neck lengths and coatings available for unique project requirements

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

Category Work Material Grade
DIE STEEL 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 ⭕️
Carbon fiber
Titanium alloys
Heat resistant alloys
Cemented carbide
Hard brittle (non-metallic) material

2 flute end mill

Total 16 models

Model Number Outside Diameter Length Of Cut Effective Length Shank Taper Angle Overall Length Number Of Flutes Shank Diameter In Stock
SHDS2-0010020 0.1 0.2 – 12° 50 2 4 ○
SHDS2-0020040 0.2 0.4 – 12° 50 2 4 ○
SHDS2-0030060 0.3 0.6 – 12° 50 2 4 ○
SHDS2-0040080 0.4 0.8 – 12° 50 2 4 ○
SHDS2-0050100 0.5 1 – 12° 50 2 4 ○
SHDS2-0060150 0.6 1.5 – 12° 50 2 4 ○
SHDS2-0070180 0.7 1.8 – 12° 50 2 4 ○
SHDS2-0080200 0.8 2 – 12° 50 2 4 ○
SHDS2-0100300 1 3 – 12° 50 2 4 ○
SHDS2-0150400 1.5 4 – 12° 50 2 4 ○
SHDS2-0200500 2 5 – 12° 50 2 4 ○
SHDS2-0250600 2.5 6 – 12° 50 2 4 ○
SHDS2-0300800-4 3 8 – 12° 50 2 4 ○
SHDS2-0401000-4 4 10 – – 50 2 4 ○
SHDS2-0401000-6 4 10 – 12° 60 2 6 ○
SHDS2-0601500 6 15 – – 60 2 6 ○

Milling Conditions

Work Material Oxygen-free & Copper
(mm)Diameter (min-1)Speed (mm/min)Feed
D1.0 10000 150
D1.5 8000 180
D2.0 8000 200
D2.5 6000 300
D3 7000 300
D4 7000 300
D4 7000 300
D6 7000 300

Milling Amount for Side Milling(mm)

Work Material \ Length of Cut 2.5D (Length of Cut=Diameter*2.5) 4D (Length of Cut=Diameter*4)
45HRC以下Below 45HRC ae​=0.07D ap​=2D ae​=0.07D ap​=2D
45HRC以上Above 45HRC ae​=0.03D ap​=1.5D ae​=0.03D ap​=1.5D

D: Diameter (mm)

ap:Axial Depth (mm)

ae: Radial Depth (mm)

Note:
*Decrease both spindle speed and feed rate proportionally when the milling parameters exceed the machine’s maximum spindle speed;
*Recommend oil coolant for Stainless Steels and Heat Resistance Alloys.

Contour Milling

Work Material Oxygen-free & Copper
(mm)Diameter (min-1)Speed (mm/min)Feed
D0.1 40000 180
D0.2 40000 300
D0.3 36000 500
D0.4 30000 700
D0.5 32000 800
D0.6 26000 800
D0.7 26000 800
D0.8 22000 1000
D1.0 18000 1200
D1.5 16000 1500
D2.0 16000 1800
D2.5 14000 1800
D3 12000 2200
D4 12000 2200
D4 12000 2200
D6 10000 2400

Note:

*Decrease both spindle speed and feed rate proportionally when the milling parameters exceed the machine’s maximum spindle speed;

*Recommend oil coolant for Stainless Steels and Heat Resistance Alloys;

*Recommend using a non-contact measuring device to avoid damaging the precisiontip point;

*Decrease both spindle speed and feed rate proportionally in case of chattering;

Download 2: End Mill for Copper 2 flute flat end mill File

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