25.639Level 525.63Manufacture of tools25.63901Manufacture of hand tools such as pliers, screwdrivers, wrenches, pruning shears, trowels, blowtorches, etc.25.63902Manufacture of knives and cutting blades for machines or for mechanical appliances25.63903Manufacture of interchangeable tools for hand tools, whether or not, or for machine tools: drills, punches, dies, cutters, etc.25.63904Manufacture of blacksmith tools: forges, anvils, etc.