Swiss Diamond® | Forged Knives | Swiss Diamond | Premium .Swiss Diamond Knives undergo an 8-stage process of grinding and sharpening making the cutting edge super sharp and easy to maintain. The knives are.diamond grinding knives,Knife sharpening - FällknivenKnife sharpening. How to use the whetstones. Use a fine or superfine diamond stone, the edge you get will generally suit all purposes. Lay the blade flat on the.
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