Ohira Koppa lv 4,5 (a2790)
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Hard Ohira Koppa stone
Very good as super finisher/polisher for knives or tools
Best to be used with nagura as it is quite hard !
Feels very smooth and produce crisp semi mirror finish with contrast !
Amazing for double bevel knives and on Ura on single bevels
need some flattening
max Size: 205mm 85mm 25mm