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jack plane

noun

, Carpentry.
  1. a plane for rough surfacing.


jack plane

noun

  1. a carpenter's plane, usually with a wooden body, used for rough planing of timber
“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


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Word History and Origins

Origin of jack plane1

First recorded in 1805–15
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Example Sentences

“A Lie-Nielsen low-angle jack plane to make boards perfectly flat.”

Planes.—For roughing out the work the jack plane is employed, varying in size from 14 inches long with a cutter knife or blade 2 inches wide, to 27 long with a blade 21⁄4 inches wide, and as its purpose is to make a flat surface, it is preferable that it be as long as the work will conveniently permit.

The jack plane is followed by the fore plane, the truing, or trying plane, which varies in size from about 18 inches long with a blade 21⁄8 inches wide, to 20 inches long with a cutter or blade 23⁄8 inches wide.

The blade of a jack plane is most efficient when it is ground well away towards the corners, as at a b in Fig.

In using a jack plane we commence each stroke by exerting a pressure mostly on the fore part of the plane, commencing at the end and towards the edge of the board, and taking off a shaving as long as the arms can conveniently reach.

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