CXXXVI. In this quarter in the first place, is a Skew Former, having the edge deeper down in one part than another: It is seldom used by Joyners, but for the cleansing of acute Angles, with its acute angles on its edges, where other angled Chissels will not so well come, and also for making of long and narrow Mortesses in Rails, Stiles and Muntons, &c.
The second in this quarter, is termed a Gouge, which is a Chissel having a round edge, and is for the cutting of such Wood as is to be rounded or hollowed: Of these there are several sorts from a quarter of an Inch Gouge, to an Inch and half, some being almost half round, others more open, as in the next Figure. G. 3 such A. Hafts O. by the name of Gouger.
— From Randle Holme’s “The Academy of Armory, or, A Storehouse of Armory and Blazon” Book III, Chapter VIII, Plate 2.