Harvey Tool 852720-C6 | 0.3125" (5/16) Diameter x 0.3125" (5/16) Shank x 1.0000" (1) LOC x 2.5000" (2-1/2) OAL x 0.0150" (1/64) Radius 5 Flutes AlTiN Nano 2 FL Coated Carbide Hardened Steel Corner Radius End MillHarvey Tool offering of End Mills for Hardened Steels Corner Radius For Steels Up to 55Rc is engineered to mill hardened tool, die, and mold steels up to 55Rc. Designed to mill hardened tool, die, and mold steels up to 55Rc Increased shank diameter to maintain strength and stiffness h6 shank tolerance for high precision tool holders Corner Radius for improved strength CNC ground in the USA Center cutting Solid carbide Product Specifications Tool