Naniwa Professional (Chosera) Whetstone Sharpening Stone, 600 grit Wusthof Classic and you get the very

and you get the very useful and standard Japanese style petty (utility) knife shape

If you want a diamond sharpener

and it resharpens more easily than most stainless steels

Forged from a single piece of chromium-molybdenum-vanadium blade steel (X50 Cr MoV 15)

Naniwa Professional (Chosera) Whetstone Sharpening Stone, 600 grit Wusthof Classic and you get the veryNaniwa Chosera Coarse 600 Grit Japanese Whetstone Sharpening Stone, NO stand base, 20cmx7cm surface, 2cm thick. Made in Japan. This coarse stone is perfect for grinding a new edge on your knife, and for working out nicks or cracks or other imperfections in old used abused damaged knives. Use this grade only when you regular maintenance and finishing isn't doing the trick anymore. It's quite coarse and so will cut (remove metal) quite aggressively and