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ProductsHigh Polish Long Neck Micro Ball Nose End Mill for Aluminum - 2 Flute, Deep Reach
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High Polish Long Neck Micro Ball Nose End Mill for Aluminum - 2 Flute, Deep Reach

Polished carbide long neck ball nose end mill (Rib Cutter) for aluminum & non-ferrous metals. Prevents sticking in deep cavity milling. R0.15 - R1.5 with effective lengths up to 30mm.

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Polished Long Neck Micro Ball Nose End Mill (For Aluminum)

Designed for deep cavity machining in non-ferrous materials, this Long Neck Micro Ball Nose series solves the two biggest problems in aluminum milling: chip adhesion (sticking) and wall rubbing.
Unlike standard steel cutters, these tools feature a mirror-polished flute and specialized geometry to ensure smooth chip evacuation when machining deep ribs and slots in Aluminum 6061, 7075, Brass, and Copper.

Key Features & SEO Benefits

  • Mirror-Polished Flutes: The ultra-smooth surface finish minimizes friction and prevents the "built-up edge" (material melting onto the tool) common in aluminum processing.
  • Deep Reach (Rib Cutter): The relieved neck diameter (D2 < D1) allows for machining deep pockets and thin ribs without the shank contacting the workpiece.
  • Sharp Cutting Edge: Features a sharper edge prep than steel tools, reducing cutting forces and ensuring a burr-free finish on soft metals and plastics.
  • Rigid 4mm Shank: Standard h6 tolerance 4mm shank maximizes rigidity, reducing vibration and chatter during deep milling operations.
  • Wide Size Range: Available from R0.15 to R1.5, with effective lengths tailored for high-precision mold and electronic component manufacturing.

Applications

  • Electronic Housings: Milling deep internal corners in aluminum smartphone/laptop cases.
  • Heat Sinks: Machining deep, curved fins for thermal dissipation.
  • Aluminum Molds: Precision finishing of prototype molds and shoe molds.

Technical Specifications

Shank Diameter: 4.0mm (Standard) Coating: Uncoated (High Polish) or DLC (Upon Request) Helix Angle: 45° (Optimized for soft material chip removal)
(Find your required Ball Radius (R) and select the matching Effective Length L1)
Ball Radius (R)
Cutter Dia (
ϕ\phi

)
Length of Cut (L2)
Available Effective Cutting Lengths (L1) (Select the depth you need to reach)
Overall Length (L)
R0.15
0.3 mm
0.6 mm
1.0, 1.5, 2.0, 2.5, 3.0, 4.0 mm
50 mm
R0.2
0.4 mm
0.8 mm
1.5, 2.0, 3.0, 4.0, 5.0, 6.0 mm
50 mm
R0.25
0.5 mm
1.0 mm
1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0 mm
50 mm
R0.3
0.6 mm
1.2 mm
2, 3, 4, 5, 6, 8, 10, 12 mm
50 mm
R0.4
0.8 mm
1.6 mm
2, 3, 4, 5, 6, 8, 10, 12 mm
50 mm
R0.5
1.0 mm
2.0 mm
3, 4, 5, 6, 8, 10, 12, 14, 15, 16, 18, 20, 22, 25, 30 mm
50 mm
R0.6
1.2 mm
2.4 mm
4, 6, 8, 10, 12, 14, 16, 18, 20 mm
50 mm
R0.75
1.5 mm
3.0 mm
4, 5, 6, 8, 10, 12, 14, 15, 16, 18, 20, 22, 25, 30 mm
50 mm
R1.0
2.0 mm
4.0 mm
6, 8, 10, 12, 14, 15, 16, 18, 20, 22, 25, 30 mm
50 mm
R1.5
3.0 mm
6.0 mm
8, 10, 12, 14, 15, 16, 18, 20, 22, 25, 30 mm
50 mm

Why Choose Our Aluminum Rib Cutters?

Using a steel cutter on aluminum often leads to clogging and breakage in deep slots. Our dedicated aluminum series uses extra-large chip gullets and a U-shaped flute design to throw chips up and out of the cavity efficiently.
Contact us for bulk pricing or custom DLC (Diamond-Like Carbon) coating options!