... ,end mills,2Flute-4Flute High quality of wearability and impact. tungsten carbide milling cutters,end milling cutters,end mills, 2Flute-4Flute ... 1. Micrograin carbide rod: WC=90%, Co=10%, TRS>3800N/mm2; Hardness>91.8HRA, Grain size: 0.5 ... steel, heat-treament steel. Aluminum alloy steel, Non ferrous alloy. tungsten carbide milling cutters,end milling cutters