• synonyms


or man·dril

[man-druh l]
noun Machinery.
  1. a shaft or bar the end of which is inserted into a workpiece to hold it during machining.
  2. a spindle on which a circular saw or grinding wheel rotates.
  3. the driving spindle in the headstock of a lathe.
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Origin of mandrel

1510–20; perhaps akin to French mandrin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for mandril

Historical Examples

  • The instruments are made of soft iron, and are fixed in leaden chucks, which can be readily fastened to one end of the mandril.

    Popular Technology; Volume 2

    Edward Hazen

  • Find the pitch of the lead screw, and at the head of that column is the number of teeth for the lathe stud or mandril.

  • Hollow work, as nuts and washers, may be equally operated on being driven by a mandril held in the chuck.

  • "He's going to drink it," screamed the Mandril; "battery will fire a salvo;" and he seized two oranges from the sideboard.

  • A child is employed to make them red-hot, and to lay them on a mandril nicely fitted to their size.

British Dictionary definitions for mandril



  1. a spindle on which a workpiece is supported during machining operations
  2. a shaft or arbor on which a machining tool is mounted
  3. the driving spindle in the headstock of a lathe
  4. British a miner's pick
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Word Origin

C16: perhaps related to French mandrin lathe
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

Word Origin and History for mandril



"miner's pick," 1510s, of unknown origin; perhaps borrowed from French mandrin, itself of unknown origin. Also applied from 17c. to parts of a lathe or a circular saw.

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Online Etymology Dictionary, © 2010 Douglas Harper

mandril in Medicine


  1. A shaft on which a working tool is mounted, as in a dental drill.
  2. mandrin