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 | | If a shoulder plane is the only rabbet-mouthed plane you have, you would probably use it to trim and fit cheeks and shoulders of tenons, lap joints, bridle joints, etc., as well as to cut the occasional rabbet, and other miscellaneous trimming. |
 | | However, in traditional use, where the worker has one of each type of bench plane (jack, jointer, try, and smooth) the role of the jack is to remove moderate amounts of wood from the face of a board, to flatten it in preparation for smoothing it with a smooth plane. |
 | | The jack plane has a medium length for a bench plane and can also be adjusted easily, so people who have only a jack can manage to do a middl'n job at smoothing a face, flattening a face, and straightening an edge all with this one plane. |
| workshop.tjmahaffey.com /workshop/planes1.php (9791 words) |
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