Commercial "folded" steel swords are made by layering multiple sheets, usually of two different steels, and then welding them by hot-rolling the entire stack. The completed stack is then rolled thinner and cut to blanks the size needed for each blade. These blanks may then be drop-forged or water-jet cut to shape them. The blanks are then ground down to form the edges, exposing the folds. Due to the comparative ease of manufacturing and greater efficiency (in the sense that less of the sheet tends to be lost during the stamping process), this method is most commonly seen in the manufacture of straight "damascus steel" swords such as sword canes and what are often called "double-edged samurai swords" but which are really just Chinese-style ken swords with Japanese-style fittings.