The DELTA 22-562 12-1/2-inch Steel Knife for 22-560 Planer includes two replacement knives for the DELTA TP400LS, 22-565, and 22-540 12-1/2-inch planer. The knives are made of high-speed steel for a super sharp edge, and they have twice the cutting life thanks to a reversible and double-edged design. Item Dimensions: Length = 15.5", Height = 0.5", Width = 3.9".