... 4) ISO9001:2008 5) Coated or not coated carbide end mill,tungsten carbide milling cutters,end milling cutters,end mills, 2Flute-4Flute ... 1. Micrograin carbide rod: WC=90%, Co=10%, TRS>3800N/mm2; Hardness>91 ... steel, heat-treament steel. Aluminum alloy steel, Non ferrous alloy.. carbide end mill