Gouken Finishing Whetstone “Hayabusa” #4000

Tax included.

Finishing whetstone.

For finishing and mirror finish. Gouken “Hayabusa” #4000

For a high quality finish. This is the highest quality finishing whetstone.
A finishing whetstone made of ``fused alumina'' with high grinding power. The finish is of the highest quality, with a mirror finish. If you use it after using a medium-finishing whetstone, it will give you a higher-grade finish.
Uses: Kitchen knives, scissors, knives, stainless steel cutlery, cooking knives, chisels, carpenter's tools, etc. Knives can be used up to 6 sun (180mm) for Deba, 9 sun for Yanagiba (270mm), and 9 sun for double-edged knives.

Check amenoma !

This whetstone can be used immediately by pouring an appropriate amount of water onto the whetstone surface before use. No need to soak in water. If you are working in front of a tap while dropping water, it is best to drop the water in a trickle. After use, wash the whetstone with water and dry it thoroughly in the shade before storing it. *In the case of natural whetstones, if they get wet, it may cause them to crack. Please be careful.


Gouken Finishing Whetstone “Hayabusa” #4000


Total length 210mm, width 70mm, height 20mm


Approximately 625 g


Fused alumina (#4000) for finishing, boxed


Naniwa Polishing Industry Co., Ltd.