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.
Origin of mandrel
1510–20; perhaps akin to French mandrin
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for mandril
Historical Examples of mandril
The instruments are made of soft iron, and are fixed in leaden chucks, which can be readily fastened to one end of the mandril.
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
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
Word Origin for mandrel
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.
Online Etymology Dictionary, © 2010 Douglas Harper
A shaft on which a working tool is mounted, as in a dental drill.
The American Heritage® Stedman's Medical Dictionary
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