


3-Flute End Mills for Aluminum
Solid Carbide Long Neck Micro End Mill 3 Flute for Aluminum (1mm-3mm) - Deep Reach CNC Tool
High-precision 3 Flute Long Neck Micro End Mills for Aluminum. Solid Tungsten Carbide, Shank 4mm, Dia 1mm-3mm with various effective lengths for deep rib processing. Excellent chip evacuation and surface finish. Factory direct stock.
Product Function
Designed specifically for precision machining of aluminum and non-ferrous metals, this Tungsten Carbide Micro End Mill features a Long Neck (Deep Reach) design. It is the ultimate solution for machining deep ribs, slots, and intricate pockets where standard end mills cannot reach without interference. The 3-flute geometry ensures a perfect balance between chip evacuation and surface finish, preventing chip packing in deep cavities.
Product Features
- Specialized for Aluminum: The 3-flute design with high helix angle and polished flutes minimizes built-up edge (BUE) and ensures smooth chip removal, critical for aluminum alloys (6061, 7075, etc.).
- Long Neck / Deep Reach: The reduced neck diameter allows for deep machining while maintaining high rigidity compared to standard long-flute tools, reducing chatter and deflection.
- Micro Precision: Available in micro diameters (1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm) with a standard 4mm shank for high stability.
- Premium Material: Made from Ultra-Fine Micro Grain Tungsten Carbide for exceptional wear resistance and tool life.
- High Concentricity: High-precision grinding ensures tight tolerances, essential for micro-machining applications.
Specifications
Shank Diameter (d): 4mm
Material: Solid Tungsten Carbide
Flutes: 3 Flutes
Application: Aluminum, Copper, Brass, Non-ferrous metals
Cutter Diameter (D) | Effective Cutting Length (Neck Length) | Length of Cut (L2) | Over All Length (L1) | Shank Diameter (d) |
|---|---|---|---|---|
1.0mm | 4, 5, 6, 8, 10, 12, 14, 15, 16, 18, 20 | 3.0mm | 50mm | 4mm |
1.0mm | 23, 25, 30 | 3.0mm | 60mm | 4mm |
1.5mm | 6, 8, 10, 12, 14, 15, 16, 18, 20 | 4.5mm | 50mm | 4mm |
1.5mm | 23, 25, 30 | 4.5mm | 60mm | 4mm |
2.0mm | 8, 10, 12, 14, 15, 16, 18, 20 | 6.0mm | 50mm | 4mm |
2.0mm | 23, 25, 30 | 6.0mm | 60mm | 4mm |
2.5mm | 8, 10, 12, 14, 15, 16, 18, 20 | 7.5mm | 50mm | 4mm |
2.5mm | 23, 25, 30 | 7.5mm | 60mm | 4mm |
3.0mm | 12, 14, 15, 16, 18, 20 | 9.0mm | 50mm | 4mm |
3.0mm | 23, 25, 30 | 9.0mm | 60mm | 4mm |
RPM/Feed Reference (Recommended Parameters)
Note: These parameters are for reference only. Adjust based on your machine rigidity, cooling system, and specific aluminum grade.
Diameter (mm) | RPM (min-1) | Feed Rate (mm/min) | Feed per Tooth (fz) | Depth of Cut (Ap) |
|---|---|---|---|---|
1.0 | 20,000 - 35,000 | 600 - 1200 | 0.01 - 0.02 | 0.05 - 0.1D |
1.5 | 18,000 - 30,000 | 800 - 1500 | 0.015 - 0.025 | 0.05 - 0.1D |
2.0 | 15,000 - 25,000 | 1000 - 2000 | 0.02 - 0.03 | 0.1 - 0.2D |
2.5 | 12,000 - 22,000 | 1200 - 2400 | 0.025 - 0.04 | 0.1 - 0.2D |
3.0 | 10,000 - 20,000 | 1500 - 3000 | 0.03 - 0.05 | 0.1 - 0.3D |
- Coolant: Flood coolant or Oil mist is highly recommended to prevent aluminum adhesion.
- Strategy: For deep ribs, use smaller step-downs (Ap) to reduce tool deflection.
Promotion Policy
We value our partnership and offer the following incentives for new and loyal clients:
- Free Sample: Free sample can be provided, if clients agree to pay for shipping cost.
- First Order Coupon: New clients can enjoy USD50 discount coupon for first order, if the total order amount is more than USD500.
- Big Order Discount: Clients can enjoy 2%~5% discount, if the total order amount is more than USD5000.
Client Benefits
- Factory Direct Pricing: Eliminate middlemen and get the best value for high-performance tools.
- Huge Stock: We maintain a large inventory of various effective lengths (neck lengths) for immediate shipment.
- Quality Assurance: 100% inspection before shipment ensures you receive tools that perform consistently.
- Technical Support: Our team of engineers is ready to assist with cutting parameters and tool selection.
FAQ
Q1: Is this tool suitable for steel machining?
A1: No, this 3-flute geometry is optimized for Aluminum and non-ferrous metals. For steel, we recommend our 4-flute coated series.
Q2: What is the advantage of a "Long Neck" over a "Long Flute"?
A2: A long neck tool has a relieved shank behind the cutting edge. This is much more rigid than a long flute tool, reducing vibration and breakage when reaching into deep cavities.
Q3: Do you offer coating for these tools?
A3: Standard stock is uncoated (bright finish) which is often best for aluminum to keep the edge sharp. However, we can provide DLC (Diamond-Like Carbon) coating upon request for extended tool life.
Q4: What is the lead time?
A4: For items in stock (like the specifications listed above), we ship within 24-48 hours.
Q5: Can I customize the effective length?
A5: Yes, as a manufacturer, we can customize the neck length or cutter diameter to your specific requirements. Please contact sales for a quote.

