Replacement irons (blades) are available for all Stanley block and specialist planes.All Stanley replacement plane irons are made from chrome carbon steel which has excellent edge retention characteristics and allows a razor sharp edge to be honed.All cutters are fine rotary ground to give a flat surface that is easier to sharpen.G : Denotes suitable for old style planes.To fit 112060 Plane 60. 1/2G.(old style)Size of Cutter 1.3/8in