4-Flute · TiSiN · HRC55 · Standard Reach

8mm 4-Flute TiSiN Solid Carbide Square End Millfor HRC55 Steel & Stainless

TiSiN (Titanium Silicon Nitride) coating provides excellent heat resistance and hardness up to 3,500 HV — ideal for dry or near-dry cutting in steel, stainless steel, and cast iron up to HRC55. The 4-flute geometry maximises radial contact and surface finish in profiling, shoulder milling, and finishing passes. Walter CNC 5-axis grinding ensures precise corner geometry and equal pitch between flutes.

D1 8mmL2 50mmD2 8mmOAL 150mm4 FlutesTiSiN CoatingHRC55Standard ReachMOQ 1 pc

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Richtpreis

73,67 €

Richtpreis Werk (EUR)

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

TiSiN · 4 Flute · HRC55

8mm 4F TiSiN Square EM

L2 50mm · D2 8mm · OAL 150mm

Standard Reach · HRC55

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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)8 mm
Flute Length (L2)50 mm
Shank Diameter (D2 h6)8 mm
Overall Length (L1)150 mm
Number of Flutes4
CoatingTiSiN Titanium Silicon Nitride
Max Material HardnessHRC55
Reach CategoryStandard (L1/D1 = 18.8×)
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

TiSiN · 4 Flute · HRC55

8mm 4-flute TiSiN solid carbide square end mill — L2=50mm OAL=150mm
D1 h7
8mm
L2
50mm
D2 h6
8mm
L1
150mm
Flutes
4
Reach
Standard

Where This Tool Excels

8mm TiSiN 4F — Recommended Applications

  • ▸Automotive component profiling and slotting
  • ▸General CNC machining centre operations
  • ▸Pump and valve body pocket features
  • ▸Jig and fixture plate machining
Machining Tip: At ø8mm, the tool-to-work stiffness ratio is well-balanced. In HRC55 steel, aggressive parameters are achievable: axial depth up to 1×D, radial engagement 30–50% for profiling. Use climb milling for best surface finish.

Coating Performance

TiSiN — Why It Works

  • ▸TiSiN hardness > 3,500 HV — superior to TiAlN
  • ▸Excellent thermal stability in steel and stainless
  • ▸Low friction coefficient reduces cutting temperature
  • ▸Suitable for dry, MQL, or flood coolant environments
ISO PISO MISO K4 flute TiSiN square end millcarbide end mill HRC55 steelsquare end mill stainless steel4 flute solid carbide end mill

Same Diameter, Different Reach

ø8mm TiSiN · 4 Flute · HRC55 — Other Flute Lengths

L2 20mm
OAL 60mm · Standard
L2 25mm
OAL 75mm · Standard
L2 35mm
OAL 100mm · Standard

Same Size, Different Coating

ø8mm / L2 50mm — Other Variants

TiSiN · 2 Flute · HRC55
TiSiN · 2 Flute · HRC55
HRC55 · 2F
Uncoated · 2 Flute · Aluminium
Uncoated · 2 Flute · Aluminium
Non-Ferrous · 2F
Uncoated · 3 Flute · Aluminium
Uncoated · 3 Flute · Aluminium
Non-Ferrous · 3F
nACo · 4 Flute · HRC65
nACo · 4 Flute · HRC65
HRC65 · 4F
ø8mm / L2 35mm← All Square End Millsø9mm / L2 20mm

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