Widin Carbide Corner Radius End Mill For Mold & Die - 6 Flute 45° - 16mm x R0.5With its 6 flutes, this end mill ensures smooth and precise cutting, resulting in high quality surface finishes on the workpiece. The 45 helix angle of the tool reduces cutting load and improves processability, allowing for efficient material removal and enhanced machining performance. Additionally, the long type shank of the end mill makes it suitable for deep groove machining, providing the necessary reach and stability for complex mold and die