This pre-radiused extruded material is sold in bulk by the pound. Keystock comes in 12-foot lengths; may be cut in half for ease of shipping smaller quantities. Our custom-extruded stock fulfills the requirement for keys to be radiused on edges for proper fit in the prop end of the shaft. Thus there is no contact in fillet areas of the keyway, where such contact would result in early shaft failure. Highest quality materials are used for this keystock.