4 Flute Corner Radius Carbide End Mill Blue Nano Coated Long Reach CNC Milling Cutter HRC65

4 Flute Corner Radius Carbide End Mill

Designed for high-performance CNC machining, mold manufacturing, and precision contour milling, this 4 Flute Corner Radius Carbide End Mill delivers outstanding rigidity, wear resistance, and machining stability. Manufactured from premium micro-grain solid tungsten carbide and enhanced with advanced blue nano coating, it provides excellent cutting performance for steel, stainless steel, cast iron, and hardened materials.

The corner radius geometry combines the strength of a square end mill with the durability of a reinforced cutting edge, reducing chipping and improving tool life during heavy-duty machining operations.

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Product Features

Corner Radius Cutting Geometry

The reinforced corner radius design offers:

• Stronger cutting edges
• Reduced edge chipping
• Improved surface finish
• Better corner strength
• Extended tool life

Ideal for contour machining and mold processing.

4 Flute High-Rigidity Design

The optimized 4-flute geometry provides:

• Higher material removal rates
• Improved rigidity
• Reduced vibration
• Stable cutting performance
• Excellent dimensional accuracy

Suitable for both roughing and finishing operations.

Long Reach Structure

The extended flute design enables:

• Deep cavity machining
• Pocket milling
• Mold component machining
• Long-reach contour processing

While maintaining cutting stability.

Premium Solid Carbide Construction

Manufactured from high-quality tungsten carbide for superior hardness, wear resistance, and long-term durability.

Blue Nano Coating

The advanced nano coating improves:

• Heat resistance
• Surface hardness
• Oxidation resistance
• Wear resistance

Helping extend tool life during high-speed machining.

HRC65 Machining Capability

Suitable for machining materials up to HRC65 while maintaining excellent cutting efficiency and tool longevity.

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Applications

Widely used for:

• Slot Milling
• Side Milling
• Pocket Milling
• Contour Machining
• Shoulder Milling
• Mold Manufacturing
• Semi-Finishing
• Precision CNC Machining

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Suitable Materials

• Carbon Steel
• Alloy Steel
• Mold Steel
• Stainless Steel
• Cast Iron
• Hardened Steel (≤HRC65)

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Product Advantages

• Excellent corner strength
• Reduced edge chipping
• Stable high-speed machining
• Superior wear resistance
• Long tool life
• Excellent surface finish quality
• Suitable for hardened steel applications

Perfect for CNC machining centers, mold manufacturing, precision engineering, and industrial metalworking applications requiring durability, accuracy, and high machining efficiency.