4-Flute 3mm Carbide End Mill – Long Shank 75mm CNC Milling Tool
4-Flute Carbide End Mill 3mm | Extra Long Shank 75mm | CNC Milling Tool
Precision-engineered for demanding industrial and CNC machining applications, this 3mm 4-Flute Carbide End Mill features an extra-long 75mm straight shank for deep-reach milling tasks. Crafted from premium solid carbide, it delivers exceptional hot hardness and oxidation resistance — keeping performance consistent even under high-speed, high-temperature cutting conditions. Whether you're working with general steel, alloy steel, or die steel, this end mill maintains sharp, accurate cuts throughout its service life.
Key Features
- Premium Carbide Material: Solid carbide construction provides outstanding wear resistance and cutting durability.
- 4-Flute Design: Optimized for smooth surface finishes and efficient chip evacuation in steel and alloy materials.
- Extra Long 75mm Shank: Straight long shank enables deep-reach and extended milling operations without sacrificing rigidity.
- High Cutting Hardness: Rated up to HRC45, suitable for general steel, alloy steel, and die steel.
- Hot Hardness & Oxidation Resistance: Maintains cutting performance at elevated temperatures for consistent, reliable machining.
- Versatile Industrial Use: Ideal for CNC milling machines and precision machining centers.
Specifications
| Model | CAE3-3X3 L75mm HRC45 |
| Material | Carbide |
| Number of Flutes | 4 |
| Head Diameter (d) | 3mm |
| Shank Diameter (D) | 3mm |
| Blade Length (L1) | 12mm |
| Overall Length (L) | 75mm |
| Max Cutting Hardness | HRC45 |
| Applicable Materials | General Steel, Alloy Steel, Die Steel |
What's in the Box
- 1 × 3mm 4-Flute Carbide End Mill (Extra Long Shank 75mm)
Made in Mainland China.
Note: Actual color may vary slightly from product images due to monitor brightness and lighting conditions. Please allow for minor measurement deviations.
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Frequently Asked Questions
Q: What materials can this 3mm carbide end mill cut?
A: This 4-flute carbide end mill is designed for general steel, alloy steel, and die steel, with a maximum cutting hardness rating of HRC45. Its solid carbide construction ensures excellent performance across these materials in industrial and CNC milling applications.
Q: Why choose a 4-flute end mill over a 2-flute design?
A: A 4-flute end mill provides a smoother surface finish and is better suited for harder materials like steel and alloy. It removes material more efficiently per pass and improves rigidity during cutting, making it the preferred choice for precision industrial milling work.
Q: Is this end mill compatible with standard CNC milling machines?
A: Yes. The 3mm straight shank is compatible with standard CNC milling machine collets and tool holders that accept 3mm shank diameters. The extra-long 75mm overall length makes it particularly well-suited for deep-reach milling operations.
Q: What does the extra-long 75mm shank offer compared to standard-length end mills?
A: The extended 75mm overall length allows the end mill to reach deeper into workpieces and cavities, expanding the range of milling operations you can perform — especially useful for mold making, die machining, and deep-pocket cutting tasks.