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ALC Series Micro Carbide Ball End Mill

Ultra-precision R0.05-R0.45mm micro carbide ball nose end mills with DLC coating. Engineered for precision 3D contouring and profiling in aluminum, copper, and graphite. Zero material adhesion, superior micro surface finish, extended tool life.

R0.05mm - R0.45mm Radius 2-Flute Micro Design DLC Coated Non-Ferrous 3D Specialist ±0.005mm Precision Zero BUE on Micro Curves
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ALC Series Micro Carbide Ball End Mill
ALC Series Micro Carbide Ball End Mill

Procurement & Commercial Terms for Micro Ball Tools

MOQ5 pcs (micro ball minimum) | 50 pcs (bulk pricing)
Lead Time3–5 days (standard micro sizes) | 7–10 days (custom radii)
InventoryR0.05mm–R0.45mm in stock. Ultra-micro radii (≤R0.15mm) require careful handling
Special HandlingIndividual protective tubes + anti-static packaging for micro ball tools
Quality Guarantee100% inspection under microscope. Replacement for any precision or coating defects
ShippingDHL/FedEx/UPS for samples | Air/Sea freight for bulk. Incoterms: EXW, FOB, CIF, DDP

Why Choose ALC Micro Ball Nose for Precision Non-Ferrous 3D Machining?

DLC on Micro Spherical Tips

DLC coating maintains ultra-low friction on fragile micro ball tips during complex 3D toolpaths. Prevents built-up edge (BUE) on curved surfaces, ensuring consistent micro-profile quality in aluminum and copper.

Micro 3D Chip Evacuation

2-flute geometry maximizes flute volume for continuous chip flow during micro 3D profiling. Prevents chip recutting on contoured surfaces, critical for achieving mirror-like finishes on soft metals.

±0.005mm Radius Accuracy

Ultra-fine grain carbide substrate with precision CNC grinding achieves exceptional spherical accuracy. Essential for micro jewelry, watch components, and precision non-ferrous 3D details.

Extended Micro Tool Life

DLC coating extends micro ball nose life by 300-500% compared to uncoated alternatives. Reduces tool change frequency and maintains cutting efficiency in high-volume micro 3D production.

ALC Micro Ball Nose Specifications (R0.05-R0.45mm)

ALC Micro Ball Nose Specifications (R0.05-R0.45mm)

ModelR (mm)D (mm)H (mm)d (mm)L (mm)Stock
ALC-2BS-0.05-0.1-0.2-4-500.050.10.2450● In Stock
ALC-2BS-0.1-0.2-0.4-4-500.10.20.4450● In Stock
ALC-2BS-0.15-0.3-0.6-4-500.150.30.6450● In Stock
ALC-2BS-0.2-0.4-0.8-4-500.20.40.8450● In Stock
ALC-2BS-0.25-0.5-1-4-500.250.51450● In Stock
ALC-2BS-0.3-0.6-1.2-4-500.30.61.2450● In Stock
ALC-2BS-0.35-0.7-1.4-4-500.350.71.4450● In Stock
ALC-2BS-0.4-0.8-1.6-4-500.40.81.6450● In Stock
ALC-2BS-0.45-0.9-1.8-4-500.450.91.8450● In Stock

All sizes in stock | Radius tolerance: ±0.005mm | Spherical runout: <0.003mm | Surface finish: Ra≤0.2μm | Custom radii available upon request

Micro Ball Tool Handling: Tools with R≤0.15mm require extreme care. Use precision collets (ER11/ER16), minimize overhang, and employ ramp/helical interpolation instead of direct plunging. Always inspect spherical tips under microscope before micro 3D machining.

Material Compatibility for Micro Non-Ferrous 3D Machining

Workpiece MaterialSuitabilityMicro 3D Machining Notes
Aluminum (6061, 7075, 5052)◎ ExcellentPrimary application. DLC prevents adhesion on micro curves. Use high RPM with air blast for 3D profiling
Copper / Brass / Zinc◎ ExcellentDLC coating prevents smearing on micro ball tips. Ideal for intricate electrical connectors
Graphite / Carbon◎ ExcellentDLC is chemically inert. No contamination. Extended life for micro EDM electrode detailing
Precious Metals (Gold, Silver)◎ ExcellentJewelry & watchmaking. DLC ensures fine micro-detail and smooth polish-ready 3D surfaces
Plastics / Acrylic / POM◎ ExcellentLow friction prevents melting. Clean 3D cuts with minimal burring on micro features
Steel / Hardened Steel✗ Not RecommendedDLC coating fails rapidly in steel. Use GM/PM/HM coated series for ferrous micro 3D

◎ = Excellent for Micro Non-Ferrous 3D | ✗ = Not Recommended | ALC Micro Ball Series is optimized for aluminum, copper and graphite. For steel or hardened materials, please use our GM Micro Series.

Typical Applications for ALC Micro Ball Nose End Mills

💎 Jewelry & Watchmaking

Precision 3D engraving and profiling of precious metals and brass components. DLC coating ensures burr-free micro curves and reduces polishing time.

🔌 Micro Electronics & Connectors

3D contouring of copper traces, aluminum heat sinks, and miniature connector housings. Zero adhesion maintains tight tolerances on delicate features.

⚡ Micro Graphite Electrode Detailing

Fine 3D detailing of EDM electrodes. DLC prevents coating flaking and graphite contamination, ensuring accurate spark erosion reproduction.

Micro 3D Machining Parameters & Best Practices

Recommended 3D Parameters (Aluminum/Copper)
  • ✅ R0.05-R0.15mm tools: Vc=300-500 m/min, fz=0.005-0.008 mm/tooth, Stepover ≤3% D
  • ✅ R0.2-R0.3mm tools: Vc=350-550 m/min, fz=0.008-0.01 mm/tooth, Stepover ≤5% D
  • ✅ R0.35-R0.45mm tools: Vc=400-600 m/min, fz=0.01-0.012 mm/tooth, Stepover ≤8% D
  • ✅ Use air blast or mist for chip evacuation in micro aluminum 3D profiling
Critical Micro 3D Machining Tips
  • ⚠️ Use precision collets (ER11/ER16) with <0.002mm runout
  • ⚠️ Avoid direct plunging - use ramp/helical interpolation to protect micro ball tips
  • ⚠️ Climb milling only - reduces cutting forces and prevents work hardening on curves
  • ⚠️ Maintain constant chip load - avoid dwell to prevent heat concentration on spherical surface
  • ⚠️ Inspect under microscope before machining - check for tip chipping or coating defects

Factory Production & Quality Control

Micro carbide ball nose grinding and quality inspection line

Manufacturing Process & QA Steps

  • 🔹 Substrate: Ultra-fine grain carbide optimized for DLC coating adhesion and micro ball tip strength
  • 🔹 Micro Ball Grinding: 5-axis CNC grinding maintains spherical radius accuracy ±0.005mm and tip concentricity
  • 🔹 DLC Coating: Diamond-like carbon applied via PVD process for uniform thickness on fragile micro spheres
  • 🔹 Inspection: 100% microscope inspection. Radius, runout, coating integrity, and tip geometry verified
  • Packaging: Individual protective tubes with anti-static packaging for micro ball tool protection

Frequently Asked Questions

ALC Series micro ball nose end mills start at R0.05mm (D0.1mm) with H0.2mm flute length. The 2-flute DLC design prevents chip packing and material adhesion during complex micro 3D contouring.

Yes. DLC coating is ideal for micro aluminum and copper 3D profiling. It provides ultra-low friction (<0.1 coefficient) that prevents built-up edge (BUE) on spherical micro tips and ensures smooth, burr-free 3D surfaces.

For micro non-ferrous 3D machining: Use high RPM (25,000-50,000+), conservative stepover (2-5% D), fz=0.005-0.012 mm/tooth, and climb milling. Maintain runout <0.002mm and use air blast or MQL for chip evacuation.

Use precision collets with <0.002mm runout, avoid radial engagement >10% of D on entry, use ramp/helical interpolation instead of direct plunging, and maintain consistent feed rates. DLC coating reduces cutting forces, protecting fragile micro tips.

Request Quote for ALC Series Micro Carbide Ball End Mill

Specify your diameter range, material, and monthly volume. We respond with pricing, stock status within 24 hours.

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