HRC65 Corner Radius End Mill【4 Flutes Φ1-20】

Tailored for High-Hardness Steels up to 65HRC – Built for Performance and Longevity
Made from premium micro-grain carbide and coated with a high red hardness layer, this cutter excels in machining heat-treated tool steels. It delivers excellent wear resistance and edge strength, making it suitable for mold bases, hardened inserts, and high-precision die components.

Corner Radius Geometry Increases Edge Strength and Surface Integrity
Compared to sharp-edge tools, the corner radius design reduces localized stress and minimizes chipping risk at the cutting edge. This not only extends tool life but also improves the consistency of surface finish in high-hardness materials.

4-Flute Design for Higher Metal Removal Rates and Better Finishing
The 4-flute configuration offers more cutting edges per pass, enabling higher feed rates while maintaining cutting stability. Ideal for semi-finishing and finishing operations, especially where dimensional accuracy and smooth surface quality are critical.

Short Flute Length for Rigidity, Ideal for Shallow Cavities and Precision Features
With a short flute length and robust core geometry, the tool offers excellent rigidity, minimizing deflection and vibration during contour milling or slotting in hard materials. Best suited for rigid setups and tight-tolerance part production.

Advanced Coating Enables High-Speed Machining and Dry Cutting Conditions
The high red-hardness nano-coating (such as HG) ensures thermal stability at elevated speeds, supporting both dry machining and MQL (minimum quantity lubrication). It enables clean, efficient, and environmentally friendly cutting operations.

Application-Based Cutting Parameters Included – Reduce Setup Time and Maximize Output
Samho provides detailed cutting data for each end mill, including optimal speeds, feeds, and depth of cut for 65HRC steel. This helps users streamline programming, reduce trial-and-error, and ensure consistent high-performance results.