Читать книгу The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking - Paul N. Hasluck - Страница 77

The edge of a cutting iron should be ground and sharpened to suit the tool in which it is to be used. If this is not done, the plane marks will be visible when the work is finished especially with polished or varnished surfaces. For a single-iron jack plane the edge should be rounded as in Fig. 200; for an ordinary jack plane the iron should be slightly rounded, as in Fig. 201; while for smoothing, panel, and trying planes the edge should be straight, but with just the corners rounded slightly to prevent their marking the work, as shown in Fig. 202. Trying planes, shooting planes, as well as rebate planes, badger jack planes, and rebating jack planes, should be sharpened with the edge straight. When a smoothing or panel plane is sharpened to the proper shape, and a board skilfully planed with it, no ridges will be perceptible to the touch if the hand is passed across it from side to side.

Fig. 202.—Plane Iron with Rounded Corners.

Fig. 203.—Plane Irons with Thin Cutter Between.