Hitohira Kikuchiyo Manzo 210mm Deba Aogami 2 Ho Wood with Saya Expiration Date Medium abrasive honing rod suitable 0003.cs.mix.mix Medium abrasive honing rod suitable for western style stainless steel knives and up to moderately hard Japanese double bevel knives (approx Lignum Vitae species are so dense that they were once used as wooden ball bearings on ships Deep ground ura hollow grind on the inside makes for excellent food release and helps to keep a narrow urasaki throughout the life of the blade and a polished spine and heel are a nice touch Kambei along with a few other Sakai sharpeners pioneered the style of wide bevel on double bevel knives