Sumikama Kasumi Diamond Sharpener

With the “Sumikama Kasumi Diamond Sharpener” and its ceramic sharpening stone, you can give your knives a rough edge. With the diamond sharpening stone, you can perform fine-tuning by inserting the knife into the different areas and moving it back and forth about 10 times. This will restore the sharpness of your knives. Suitable only for double-bevel knives.