Milling machinery Electric metal-cutting 78 Metal-cutting 65 Surface roughness 48 Milling (Metal-work) 19 Milling cutters 16 Machine-tools 14 Machining 10 Electrodes 6 Metal-cutting tools 6 Tungsten carbide 6 Automation 4 Experimental design 4 Milling-machines 4 Plant maintenance 4 Total productive maintenance 4 Cutting 3 Mills and mill-work 3 Aluminum 2 Ball mills 2 Cutting tools 2 Dies (Metal-working) 2 Electron beam welding 2 Friction 2 High-speed machining 2 Mechanical wear 2 Millwrights 2 Plastic-impregnated wood 2 Steel, stainless 2 Strength of materials 2