Harvey Tool 859512-C6 | 0.1875" (3/16) Diameter x 0.2500" (1/4) Shank x 0.1500" LOC x 2.5000" (2-1/2) OAL 5 Flutes AlTiN Nano 2 FL Coated Carbide Hardened Steel Square End MillDesigned to mill hardened tool, die, and mold steels up to 55Rc, this Harvey Tool offering of End Mills for Hardened Steels Square For Steels Up to 55Rc features. 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 CNC ground in the USA Center cutting Solid carbide Product Specifications Tool Number 859512 C6 Cutter Diameter