Protect your investment in fine Shun cutlery and keep your edges razor-sharp with the Shun Combination Whetstone / Wetstone. In cases where your knife becomes dull, this Shun Combination Whetstone offers 1000-grit sharpening that will quickly remove material from the edge, helping you put a new edge on the knife and restore the sharpness. The other side, the 3000-grit stone, will smooth and finish the edge. You will need to thoroughly soak this whetstone before sharpening.