High Performance 2 Flute Micro Diameter Deep Groove Round Nose End Mills

NNH-2RSP high-performance 2-flute micro-diameter deep groove round nose end mills offer a wide range of flexible size options, covering a variety of tool diameters, flute lengths and overall lengths. Different sub-models can be freely selected according to processing requirements, whether it is a shorter flute length for increased rigidity or a longer flute length for deeper cavity or slot applications.

The round nose design in the micro-diameter range balances cutting edge strength and processing accuracy, while the arc transition reduces cutting resistance and maintains stable cutting performance at high speeds. This special geometry not only reduces the cutting load of the tool, but also achieves a smoother bottom transition when machining deep grooves or pits, reflecting the design considerations for improved surface finish and extended tool life.

In terms of manufacturing process, these end mills are produced using high-precision CNC grinding technology, combined with AlTiSiN coating, which can improve surface hardness and wear resistance. The 30° helix angle is conducive to efficient chip evacuation and minimizes heat accumulation during cutting. After rigorous heat treatment and precision grinding, the tool maintains excellent dimensional stability and impact resistance under high-speed cutting conditions, suitable for materials with a hardness of up to HRC 55.

Thanks to these process and design features, the NNH-2RSP high performance 2-flute micro-diameter deep groove round nose end mill is very suitable for high-speed machining of various materials such as tool steel, conditioned steel, pre-hardened steel, heat-treated steel, etc.