18mm 3-Flute Uncoated Solid Carbide Square End Millfor Aluminium & Non-Ferrous Machining

The 3-flute uncoated variant strikes the balance between chip clearance (3 vs 4 flutes) and rigidity, making it ideal for profile milling, contouring, and finishing passes in aluminium and copper alloys. Three equally-spaced flutes produce better surface finish than 2-flute on ramping and helical interpolation entries. Polished bright finish prevents material adhesion. Recommended for 5-axis machining centres and high-speed spindles above 15,000 RPM.

D1 18mmL2 45mmD2 18mmOAL 100mm3 FlutesUncoated CoatingNon-FerrousStandard ReachMOQ 1 pc

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Reference price

$268.90

Ref. factory price (USD)

Based on rod stock cost as of 2026-03-31. Final quotation may differ.

Uncoated · 3 Flute · Aluminium

18mm 3F Uncoated Square EM

L2 45mm · D2 18mm · OAL 100mm

Standard Reach · Aluminium

✓ Factory direct pricing

✓ MOQ 1 piece, ships 1–5 days

✓ Custom OAL and helix available

Technical Specifications

Cutter Diameter (D1 h7)18 mm
Flute Length (L2)45 mm
Shank Diameter (D2 h6)18 mm
Overall Length (L1)100 mm
Number of Flutes3
CoatingUncoated Bright polished
Max Material HardnessN/A (non-ferrous optimised)
Reach CategoryStandard (L1/D1 = 5.6×)
Helix Angle30°–45° (application dependent)
End GeometrySquare (flat end)
SubstrateK10/K20 Ultra-Fine Grain Carbide
Shank Toleranceh6
MOQ1 piece
Lead Time (standard)1–5 business days
Lead Time (custom)5–15 business days

Uncoated · 3 Flute · Aluminium

18mm 3-flute Uncoated solid carbide square end mill — L2=45mm OAL=100mm
D1 h7
18mm
L2
45mm
D2 h6
18mm
L1
100mm
Flutes
3
Reach
Standard

18mm Uncoated 3F — Recommended Applications

  • Heavy mould base and plate machining
  • Large structural steel profiling
  • Pressure vessel and flange features
  • Mining and energy equipment components
Machining Tip: At ø18mm, chip load per tooth should be verified against machine spindle power (minimum 15 kW recommended in aluminium alloy). Use high-feed circular interpolation entry (helical ramp) to avoid plunging at full width.

Uncoated — Why It Works

  • Bright polished finish — zero micro-adhesion on aluminium
  • Eliminates built-up edge (BUE) in soft metals
  • Superior chip evacuation at high spindle speeds
  • Recommended with air blast or light oil mist
  • Mirror surface finish on aluminium: Ra < 0.4µm achievable
ISO N3 flute aluminium end mill uncoated3 flute non-ferrous carbide end milluncoated 3 flute end mill aluminiumbright carbide end mill copper

ø18mm Uncoated · 3 Flute · Aluminium — Other Flute Lengths

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Factory direct. MOQ 1 piece. Pricing confirmed within 4 hours.