Naniwa Super-Stone/Advance Japanese Whetstone Sharpening Stone, 800 grit Kitchen Tools with a 33-layer hammered stainless

with a 33-layer hammered stainless steel surface and a traditional Japanese style wooden handle

take a look at the Shapton Diamond Glass Lapping Plate

It will also stain and discolour -- this is normal

14 cm (5 1/2")

Naniwa Super-Stone/Advance Japanese Whetstone Sharpening Stone, 800 grit Kitchen Tools with a 33-layer hammered stainlessNaniwa Super Stone 800 Grit Japanese Whetstone Sharpening Stone, NO Stand, 21cm x 7cm surface, 2cm thick. This medium fine stone is perfect for grinding a new edge on your knife, or for doing regular touch up work when you don't need to remove much metal and so don't need to use a very coarse stone to start with. The Naniwa Super Stones are excellent whetstones, very reliable, forgiving, and not fragile. A great choice for the beginner or casual home