3-Flute · Uncoated · Aluminium · Standard Reach

12mm 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 12mmL2 30mmD2 12mmOAL 75mm3 FlutesUncoated CoatingNon-FerrousStandard ReachMOQ 1 pc

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Reference price

$91.59

Ref. factory price (USD)

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

Uncoated · 3 Flute · Aluminium

12mm 3F Uncoated Square EM

L2 30mm · D2 12mm · OAL 75mm

Standard Reach · Aluminium

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✓ Factory direct pricing

✓ MOQ 1 piece, ships 1–5 days

✓ Custom OAL and helix available

Full Dimensions

Technical Specifications

Cutter Diameter (D1 h7)12 mm
Flute Length (L2)30 mm
Shank Diameter (D2 h6)12 mm
Overall Length (L1)75 mm
Number of Flutes3
CoatingUncoated Bright polished
Max Material HardnessN/A (non-ferrous optimised)
Reach CategoryStandard (L1/D1 = 6.3×)
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

12mm 3-flute Uncoated solid carbide square end mill — L2=30mm OAL=75mm
D1 h7
12mm
L2
30mm
D2 h6
12mm
L1
75mm
Flutes
3
Reach
Standard

Where This Tool Excels

12mm Uncoated 3F — Recommended Applications

  • ▸Large mould and die cavity machining
  • ▸Structural component pocketing
  • ▸Gearbox and transmission case features
  • ▸Wind turbine component contouring
Machining Tip: ø12mm produces significant cutting forces. Ensure workholding clamping force is adequate. In aluminium alloy, reduce axial DOC to 0.5×D for first passes to verify fixturing stability before committing to full depth.

Coating Performance

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

Same Diameter, Different Reach

ø12mm Uncoated · 3 Flute · Aluminium — Other Flute Lengths

L2 45mm
OAL 100mm · Standard
L2 60mm
OAL 150mm · Standard

Same Size, Different Coating

ø12mm / L2 30mm — Other Variants

TiSiN · 4 Flute · HRC55
TiSiN · 4 Flute · HRC55
HRC55 · 4F
TiSiN · 2 Flute · HRC55
TiSiN · 2 Flute · HRC55
HRC55 · 2F
Uncoated · 2 Flute · Aluminium
Uncoated · 2 Flute · Aluminium
Non-Ferrous · 2F
nACo · 4 Flute · HRC65
nACo · 4 Flute · HRC65
HRC65 · 4F
ø11mm / L2 25mm← All Square End Millsø12mm / L2 45mm

Order 12mm 3-Flute Uncoated Today

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

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