20mm 2-Flute TiSiN Solid Carbide Ball Nose End Millfor HRC55 3D Contouring & Mould Work

TiSiN-coated 2-flute ball nose end mills deliver superior chip clearance during 3D contouring and cavity machining in steel and stainless steel up to HRC55. With fewer flutes, cutting forces remain low during ramping, helical entry, and Z-level finishing passes — ideal for deep mould cavities and complex aerospace profiles. TiSiN hardness > 3,500 HV resists abrasion and oxidation at elevated cutting temperatures.

R10mm BallD1 20mmL2 45mmD2 20mmOAL 100mm2 FlutesTiSiNHRC55Standard ReachMOQ 1 pc

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Reference price

$330.53

Ref. factory price (USD)

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

TiSiN · 2 Flute · HRC55

R10mm 2F TiSiN Ball Nose EM

L2 45mm · D2 20mm · OAL 100mm

Standard Reach · HRC55

✓ Factory direct pricing

✓ MOQ 1 piece, ships 1–5 days

✓ Custom ball radii available

Technical Specifications

Ball Radius (R)10 mm
Cutter Diameter (D1 h7)20 mm
Flute Length (L2)45 mm
Shank Diameter (D2 h6)20 mm
Overall Length (L1)100 mm
Number of Flutes2
End GeometryBall Nose (Spherical)
CoatingTiSiN Titanium Silicon Nitride
Max Material HardnessHRC55
Reach CategoryStandard (L1/D1 = 5.0×)
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 · 2 Flute · HRC55

R10mm 2-flute TiSiN solid carbide ball nose end mill — L2=45mm OAL=100mm
Ball R
10mm
D1 h7
20mm
L2
45mm
D2 h6
20mm
L1
100mm
Reach
Standard

R10mm TiSiN 2F — Recommended Applications

  • Heavy mould base 3D contouring
  • Large stamping and forming die profiling
  • Marine propeller and impeller blade finishing
  • Power generation turbine component contouring
Machining Tip: R10mm generates significant cutting forces in HRC55 hardened steel. Verify spindle power ≥ 10 kW for sustained 3D contouring at full engagement. Use high-pressure coolant or MQL for thermal management. Preferred tool path: scallop finishing (constant cusps) over parallel raster.

Scallop Height vs Step-Over — R10mm

Residual scallop height (cusps) between adjacent tool paths, calculated for R10mm ball nose:

Step-OverStep-Over mmScallop Height (µm)Typical Ra (µm)
2% D10.402.00.40
5% D11.0012.52.50
8% D11.6032.16.41
10% D12.0050.110.03
15% D13.00113.122.63
20% D14.00202.040.41

h = R − √(R² − (ae/2)²). Actual Ra depends on feed rate, chip load, and material.

ISO PISO MISO K

TiSiN — Why It Works for Ball-End Machining

  • TiSiN hardness > 3,500 HV — superior to TiAlN on ball-end profiles
  • Low friction reduces heat at ball-tip during 3D contouring
  • Suitable for dry, MQL, or flood coolant environments
  • 2-flute: maximum chip clearance for deep cavity ramp entry

Same Size in Other Coatings

R10mm TiSiN · 2 Flute · HRC55 — Other Flute Lengths

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