Answer: mandril

AnswerCrossword Clue
MANDRILLathe spindle
mandrilthe driving spindle in the headstock of a lathe
mandrilspindle on which a circular saw or grinding wheel rotates
mandrila shaft on which a tool is mounted, also MANDREL
mandrilshaft or bar the end of which is inserted into a workpiece to hold it during machining
mandrilmetal bar that serves as a core around which material (as metal) may be cast, molded, forged, bent, or otherwise shaped
mandrila usually tapered or cylindrical axle, spindle, or arbor inserted into a hole in a piece of work to support it during machining