Corner Radius Style End Mills are designed to mill rounded grooves.
Micro-Grain Solid Carbide Corner Radius End Mills were developed for machining tough work hardening metals, stainless steel, titanium, monel, inconel, and super alloys. It is extremely shock resistant.
Using two flutes allows for maximum chip ejection.
Single End Corner Radius - 2 Flute - Solid Carbide
Using four flutes provides a finer finish than two flutes and operates with less vibration when run at high speeds.
Single End Corner Radius - 4 Flute - Solid Carbide