Kikuichi Elite Carbon Gyuto 240mm. Kikuichi Elite Carbon Steel knives take a great edge. These knives are reactive so you will want to pay special care to them after use to make sure they stay dry. Once a patina is formed on the blade this will be easier. You can also use a bit of camellia oil on the blade to keep it from rusting. Many people love carbon steel blades because they sharpen up quickly and can maintain a very acute edge.