The "scraper" is a bit of steel plate about the thickness of a hand-saw blade, 5 in. by 3 in.; its use is to take off any ridges left by the smoothing plane in planing hard wood, producing a surface perfectly free from lumpiness; it is used before the sandpaper. Sandpapering is done with the paper wrapped round a piece of cork. The usual size for large flat surfaces is 5 in. by 4 in., and about 1 in. thick. One side is made quite flat, and on this the paper is placed. Pieces of cork are used for all kinds of sandpapering, - hollows, rounds, mouldings, etc., - the cork being shaped with the rasp, to fit the part to be prepared.