4 Flute Corner Radius Carbide End Mill Nano Coated Long Reach CNC Milling Cutter HRC70

4 Flute Corner Radius Carbide End Mill

Designed for high-performance CNC machining and precision metal cutting, this 4 Flute Corner Radius Carbide End Mill combines the strength of a square end mill with the durability of a reinforced corner radius geometry. Manufactured from premium micro-grain solid tungsten carbide and enhanced with a wear-resistant nano coating, it delivers outstanding cutting stability, excellent surface finish, and extended tool life in demanding machining environments.

The corner radius design helps reduce edge chipping, improve corner strength, and minimize stress concentration during heavy cutting operations, making it ideal for slot milling, side milling, contour machining, cavity machining, and semi-finishing applications.

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Product Features

Corner Radius Geometry

The reinforced corner radius design offers:

• Increased edge strength
• Reduced chipping risk
• Improved tool life
• Better surface finish quality
• Enhanced machining stability

Ideal for applications where standard square end mills are prone to edge wear.

4 Flute High-Rigidity Design

The optimized 4-flute geometry provides:

• Higher metal removal rates
• Improved rigidity
• Better cutting stability
• Reduced vibration
• Excellent dimensional accuracy

Suitable for continuous CNC machining operations.

Long Reach Structure

The extended cutting length enables:

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

While maintaining stable cutting performance.

Premium Solid Carbide Construction

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

Nano Coating Technology

The advanced nano coating improves:

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

Helping extend tool life during high-speed and continuous machining.

Precision CNC Performance

Engineered for reliable machining accuracy, smooth cutting action, and excellent surface quality across a wide range of steel machining applications.

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Applications

Widely used for:

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

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Suitable Materials

• Carbon Steel
• Alloy Steel
• Mold Steel
• Stainless Steel
• Cast Iron
• Pre-Hardened Steel

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Product Advantages

• Strong corner radius design for improved durability
• Excellent wear resistance and tool life
• Stable cutting performance
• Reduced edge chipping
• High machining efficiency
• Excellent surface finish quality
• Suitable for precision mold and component machining

Perfect for CNC machining centers, mold manufacturing, precision engineering, and industrial metalworking applications requiring reliable performance, extended tool life, and superior machining quality.