IMANISHI WZ 400 Marble

Really fast, hard, large, and also heavy stone. Immerse the stone for at least 15-20 minutes, i.e., practically until the bubbles stop rising. 

“This is one of the best soaking stones around 400 grits” - WZ 400 feels different compared to my own favorite Naniwa Pro 400, but WZ is fast and might be the fastest 400 I have seen. If soaking is not a problem for you, I would recommend this for knife repairs, etc. 

Grit: #400
Long: 210 mm
Wide: 76 mm
Thick: 27 mm 
Weight: 950 g

NOTE!

This whetstone is a so-called soaking stone. It works best after 20-30 minutes of soaking. After sharpening, immediately wipe the stone clean with a towel. This will give the stone a clean look and start the drying process. Place the stone to dry in a position where it does not touch a solid surface. For example, place the stone on top of a pencil. Allow the stone to dry slowly without additional heating. Do not place the stone in direct sunlight. Do not allow the stone to freeze when wet. It takes more than 24 hours to dry. Store the stone protected from dents, e.g., in its box.