Abstract: A super-surfacer used for super-finishing a surface of timber, wherein the shaving blade has a length which is much larger than the width of the working table and is arranged to be movable reciprocally in a direction transversely to the timber feeding direction, and a pair of grind stones are located on both sides of the table and in constant contact with the shaving blade to sharpen it, so that, with the reciprocal movement of the blade, all portions of the blade are sharpened by the grind stones just before they are used for shaving operation, and the machine can therefore be continuously operated without need of interruption of operation for sharpening or exchange of the shaving blade which has become dull.