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ProductsHigh Polish Micro Ball Nose End Mill for Aluminum - 2 Flute, HRC55 Grade Carbide
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Ball Nose End Mills for AluminumCustomizableIn-StockPremium

High Polish Micro Ball Nose End Mill for Aluminum - 2 Flute, HRC55 Grade Carbide

Specialized 2-flute micro ball nose end mill for Aluminum & Non-ferrous metals. Features a high-polish finish to prevent sticking and a sharp cutting edge. 4mm shank, R0.15-R0.95.

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Professional Micro Ball Nose End Mill for Aluminum (2 Flute, Polished)

Designed for the specific demands of non-ferrous machining, this Tungsten Carbide Micro Ball Nose End Mill features a specialized geometry and high-polish finish optimized for Aluminum, Copper, Brass, and Plastics.
Unlike standard steel cutters, this series solves the common problem of material adhesion (built-up edge), ensuring smooth chip evacuation and a mirror-like surface finish on your workpieces.

Key Features & SEO Benefits

  • Specialized for Aluminum: The unique flute geometry is designed to cut soft, gummy materials like Aluminum and Copper without sticking or clogging.
  • High-Polish "Mirror" Finish: The flutes are ground to a mirror finish to minimize friction and dramatically improve chip flow during high-speed micro machining.
  • Ultra-Sharp Cutting Edge: Features a sharper edge prep than steel cutters, reducing cutting forces and preventing burrs on delicate micro parts.
  • HRC55 Grade Substrate: Manufactured from high-quality HRC55 micro-grain tungsten carbide rods, providing the rigidity needed to prevent deflection in micro sizes.
  • Precision Run-out Control: Standard 4mm shank with strict tolerance ensures high concentricity, essential for extending tool life in small diameter milling.

Applications

Ideal for CNC micro-machining in industries requiring high-quality surface finishes on non-ferrous materials:
  • 3C Electronics: Aluminum casing, heat sinks, and button manufacturing.
  • Precision Mold Making: Copper electrodes and aluminum proto-molds.
  • Watch & Jewelry: Intricate engraving on brass, gold, and silver.

Technical Specifications

Shank Diameter (D1): 4.0mm (Standard for high rigidity) Overall Length (L): 50mm Flute Count: 2 Flutes (Best for chip clearance in aluminum)
Cutter Radius (R)
Shank Diameter
Length of Cut (L2)
Overall Length (L1)
R0.15
4 mm
0.6 mm
50 mm
R0.16
4 mm
0.64 mm
50 mm
R0.18
4 mm
0.7 mm
50 mm
R0.2
4 mm
0.8 mm
50 mm
R0.225
4 mm
0.9 mm
50 mm
R0.23
4 mm
0.92 mm
50 mm
R0.25
4 mm
1.0 mm
50 mm
R0.275
4 mm
1.1 mm
50 mm
R0.28
4 mm
1.12 mm
50 mm
R0.3
4 mm
1.2 mm
50 mm
R0.31
4 mm
1.24 mm
50 mm
R0.325
4 mm
1.3 mm
50 mm
R0.34
4 mm
1.36 mm
50 mm
R0.35
4 mm
1.4 mm
50 mm
R0.36
4 mm
1.44 mm
50 mm
R0.375
4 mm
1.5 mm
50 mm
R0.4
4 mm
1.6 mm
50 mm
R0.41
4 mm
1.64 mm
50 mm
R0.45
4 mm
1.8 mm
50 mm
R0.525
4 mm
2.1 mm
50 mm
R0.55
4 mm
2.2 mm
50 mm
R0.6
4 mm
2.4 mm
50 mm
R0.65
4 mm
2.6 mm
50 mm
R0.7
4 mm
2.8 mm
50 mm
R0.74
4 mm
2.96 mm
50 mm
R0.8
4 mm
3.2 mm
50 mm
R0.85
4 mm
3.4 mm
50 mm
R0.88
4 mm
3.52 mm
50 mm
R0.9
4 mm
3.6 mm
50 mm
R0.95
4 mm
3.8 mm
50 mm

Why Choose Our Aluminum Micro Cutters?

Machining aluminum requires different tools than steel. Our cutters are specifically engineered with larger chip gullets and U-shaped flutes to ensure heat is carried away in the chips, preventing the material from melting onto the cutter.
Need bulk pricing or custom coating (like DLC)? Contact us today for a quote!