... 5) Coated or not coated carbide end mill,tungsten carbide milling cutters,end milling cutters,end mills, 2Flute-4Flute 1. Micrograin carbide ... friction, and improve the tools life much. 4. Each end mill is inspected by Zoller measuring and inspection machine. 5 ... specification as your requirement. .6. Work Piece: Carbon steel, alloy steel, cast steel, tooling steel, mould steel, heat-treament steel ...