4-Flute Carbide End Mill 3mm | 75mm Long Shank CNC Milling
4-Flute Carbide End Mill 3mm | 75mm Long Shank CNC Milling
4-Flute Carbide End Mill 3mm | Extra Long 75mm Straight Shank
Engineered for demanding industrial and CNC machining applications, this 3mm 4-Flute Carbide End Mill features an extra-long 75mm straight shank for extended reach in deep-cavity milling operations. Crafted from premium solid carbide, it delivers excellent hot hardness and oxidation resistance, making it ideal for precision cutting in general steel, alloy steel, and die steel. Made in Mainland China.
Key Features
- 4-Flute Design: Maximizes material removal rate while maintaining a smooth, clean surface finish on every pass.
- Solid Carbide Construction: Exceptional wear resistance and cutting performance across a wide range of ferrous metals and alloys.
- Extra-Long 75mm Shank: Ideal for deep-reach applications and hard-to-access workpiece geometries in CNC and manual milling machines.
- HRC45 Cutting Hardness: Handles hardened steels and demanding industrial materials with precision and consistency.
- Straight Long Shank: Ensures secure chuck clamping and minimal runout for repeatable accuracy.
Full Specifications
| Model | CAE3-3X3 L75mm HRC45 |
| Material | Solid Carbide |
| Number of Flutes | 4 |
| Head Diameter (d) | 3 mm |
| Shank Diameter (D) | 3 mm |
| Blade Length (L1) | 12 mm |
| Overall Length (L) | 75 mm |
| Max Cutting Hardness | HRC45 |
| Applicable Materials | General Steel, Alloy Steel, Die Steel |
| Country of Origin | Made in Mainland China |
Package Contents
- 1 × 3mm 4-Flute Carbide End Mill (75mm Long Shank)
Notes
- Product color in images may vary slightly due to monitor settings and lighting conditions.
- Please allow minor measurement tolerances (±0.1mm) for listed dimensions.
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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 to cut general steel, alloy steel, and die steel. With a maximum cutting hardness of HRC45, it handles a wide range of ferrous metals commonly used in industrial CNC milling and machining operations.
Q: Why choose a 4-flute end mill over a 2-flute design for steel?
A: A 4-flute carbide end mill offers a higher number of cutting edges, which results in a smoother surface finish and faster material removal rates when machining harder materials like steel and alloy steel. The extra flutes distribute cutting load more evenly, contributing to longer tool life.
Q: Is the 75mm long shank compatible with standard CNC milling machine collets?
A: Yes. The 3mm straight shank is compatible with standard ER-series collet chucks and other common CNC milling machine tool holders that accept a 3mm shank diameter. Always verify your machine's collet size before use.