3-Flute · Uncoated · Aluminium · Standard Reach

4mm 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 4mmL2 10mmD2 4mmOAL 50mm3 FlutesUncoated CoatingNon-FerrousStandard ReachMOQ 1 pc

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Richtpreis

6,80 €

Richtpreis Werk (EUR)

Basierend auf Stabmaterial-Stand per 2026-03-31. Endgültiges Angebot kann abweichen.

Uncoated · 3 Flute · Aluminium

4mm 3F Uncoated Square EM

L2 10mm · D2 4mm · OAL 50mm

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)4 mm
Flute Length (L2)10 mm
Shank Diameter (D2 h6)4 mm
Overall Length (L1)50 mm
Number of Flutes3
CoatingUncoated Bright polished
Max Material HardnessN/A (non-ferrous optimised)
Reach CategoryStandard (L1/D1 = 12.5×)
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

4mm 3-flute Uncoated solid carbide square end mill — L2=10mm OAL=50mm
D1 h7
4mm
L2
10mm
D2 h6
4mm
L1
50mm
Flutes
3
Reach
Standard

Where This Tool Excels

4mm Uncoated 3F — Recommended Applications

  • ▸Die and mould fine detail features
  • ▸Aerospace precision component profiling
  • ▸Small hydraulic manifold pocketing
  • ▸Electronic enclosure and heat-sink machining
Machining Tip: ø4mm is the most common size for precision detail work. In aluminium alloy, use 3–5× diameter axial depth with 30–50% radial engagement. TIR < 0.005mm at the tool tip is critical for consistent tool life.

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

ø4mm Uncoated · 3 Flute · Aluminium — Other Flute Lengths

L2 15mm
OAL 75mm · Standard
L2 20mm
OAL 100mm · Standard

Same Size, Different Coating

ø4mm / L2 10mm — 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
ø3.5mm / L2 10mm← All Square End Millsø4mm / L2 15mm

Order 4mm 3-Flute Uncoated Today

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

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