With each use of your knife, the razor-sharp edge naturally bends over just a tiny bit. The edge is still sharp, but the sharpest part isn’t making contact with the food. The remedy is honing with the Shun Premier Combination Honing Steel. The Shun Premier Combination Honing Steel gently realigns the edge of your blade. It offers two honing surfaces: a smooth one for day-to-day honing, and a micro-ribbed one for weekly honing. By honing your edge regularly, you can go longer between actual sharpenings.