... ISO 9001:2008... carbide end mill,tungsten carbide milling cutters,end milling cutters,end mills, 2Flute-4Flute1. Micrograin carbide rod: WC=90%, Co= ... friction, and improve the tools life much. ..4. Each end mill is inspected by Zoller measuring and inspection machine. 5 ... -treament steel. Aluminum alloy steel, Non ferrous alloy, carbide end mill,solid carbide milling cutters,ball nose milling cutters