Widin Carbide Corner Radius End Mill - 4 Flute Long Shank - 8mm x R0.3The Widin Carbide Corner Radius End Mill is a high precision cutting tool designed for machinists who need reliable corner radii in hard to machine materials. With an 8 mm diameter, a 0. 3 mm corner radius, and a long shank, it delivers deep access performance for challenging grooves and pockets. Diameter: 8 mm Corner Radius: R0. 3 for precise, clean radii in corners Flutes: 4 flute design for efficient chip evacuation and rigidity Material: Carbide