Naniwa White Stone, 8000 grit. Final price reduction. This is a magnesia grinding stone, so avoid leaving it submerged in water. This is a well-known finishing stone, said to have achieved good results at the Kezurokai (Planing Association). It's hard, but not too hard, and has very high abrasive power. I feel it's a very good stone, but personally, the grit number is somewhat in-between, so I haven't used it much. It has a remaining thickness of 19mm, so it's hardly been used. I've been using a Kenjo diamond lapping plate to flatten the surface every time I use it, so it's flat. #GrindingStone #NaturalGrindingStone #Kenjo #KitchenKnife #Plane #Chisel #CookingUtensils #Sharpening