A jack plane is the general-purpose bench plane, used for general smoothing of the edges, sizing of timber but only making it smaller to correct size — wood edge jointing.{clarification needed|date=February 2014} Jack planes are about 12-15 inches long, and the blade can have either a slightly curved edge for smoothing stock, or a straight edge ...
A jack plane is a carpenters, long, heavy plane used for smoothing large areas of rough wood, and for rough shaving of wood, such as sticking doors.
[n] - a carpenter`s plane for rough surfacing
noun a carpenter`s plane for rough surfacing