WFour-slide
WMachine tool
WRotary transfer machine
WAngle plate
WChuck (engineering)
WCollet
WDrawbar (machine tool)
WEpoxy granite
WHobbing
WHoning (metalworking)
WHydraulic press
WIndexing head
WIndian Machine Tool Manufacturers' Association
WMachine press
WMachine taper
WMandrel
WMicrometer adjustment nut
WMilling (machining)
WMultimachine
WPlaner (metalworking)
WPress brake
WPunch press
WRotary table
WShaper
WSpindle (tool)
WStamping press
WSTEP-NC
WTailstock
WTurret punch
WTurret punch
WX-Y table