a shaft or bar the end of which is inserted into a workpiece to hold it during machining.
a spindle on which a circular saw or grinding wheel rotates.
the driving spindle in the headstock of a lathe.
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How to use mandrel in a sentence
The coil can be of any size, and to make it, resistance wire is wound around a piece of wire used as a mandrel.The Boy Mechanic, Book 2 | Various
As the mandrel with the ferrule passed through the tin, the metal was shaped exactly to the mandrel.The Boy Mechanic, Book 2 | Various
The saw is put on the mandrel at an angle, as will be seen, and should be run at a high rate of speed.Practical Mechanics for Boys | J. S. Zerbe
The mandrel should be made slightly conical in order to facilitate withdrawal.A Handbook of Laboratory Glass-Blowing | Bernard D. Bolas
This method is very handy with small lenses; the mandrel is turned, and the lens adjusted by hand till the images are immovable.On Laboratory Arts | Richard Threlfall
British Dictionary definitions for mandrel
a spindle on which a workpiece is supported during machining operations
a shaft or arbor on which a machining tool is mounted
the driving spindle in the headstock of a lathe
British a miner's pick
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012