10mm 2FL w/1.0mm Rad Heavy Core Carbide End Mill For Hardened Alloys, 10mm LOC, 20mm LBS, 10mm Shank, 100mm OAL, w/ALTiN 10mm LOC,10mm Shank,100mm OAL DM Series: AT coated heavy core with radius. High strength, high hardness solid carbide radius end mills for HSM roughing & finishing of hardened alloys up to 65HRc. Designed for milling complex contours and shapes in hard metals. Proprietary cemented carbide grade, AlTiN coating & edge prep. Maximum tool life and performance in High Speed Machining applications. Extremely close diameter & radius tolerances. Round Tool Laboratories USA Part #24556