Superior patented Austrian sharpening technology is the fastest Superior patented Austrian sharpening technology is the fastest way to sharpen any knife - and keep it sharp without removing metal. Ultra-hard precision ground tungsten carbide sharpeners are custom made in Austria by the same company that manufactures cutters that tunnel through solid rock mountains. Patented spring-action design auto-adjusts to ...  More + Product Details Close

"Sharpening is like a hangover cure," says Laurie Timpson, founder of Savernake Knives in Wiltshire. "If there was a cure and you knew about it, I'd stay at your house, crash on your sofa and have whatever it was when I woke up. Everyone would have it and there'd be no discussion. Everybody says they've created a perfect sharpening technique, and they haven't." 
The fine grit is best-suited to those somewhat dull knives which simply need a quick clean-up. Again, I suggest jumping over to stage three and honing your blade afterward for a better, straighter edge. The honing stage can even be used on its own to clean up a warped edge or simply to maintain a straight edge. This sharpener’s long sharpening slots will work well to hold blades steady as they move through, effectively reducing the chances of producing a warped and wobbly edge.
Stone: With a sharpening stone, you'll drag the blade of the knife across the rough surface of the stone. Sharpening stones consist of a number of types of material, such as diamond stones, oil stones (also called Arkansas stones), water stones (or aluminum oxide stones), and ceramic stones. Yes, the diamond stone actually contains tiny fragments of diamonds, but it's a little heavy to wear as an earring. The trick with a sharpening stone becomes applying the right amount of pressure and sharpening at the proper angle because using a sharpening stone requires a completely manual process with no guide slots. However, stones can sharpen many tools, including scissors and chisels.
Whetstones may be natural or artificial stones. Artificial stones usually come in the form of a bonded abrasive composed of a ceramic such as silicon carbide (carborundum) or of aluminium oxide (corundum). Bonded abrasives provide a faster cutting action than natural stones. They are commonly available as a double-sided block with a coarse grit on one side and a fine grit on the other enabling one stone to satisfy the basic requirements of sharpening. Some shapes are designed for specific purposes such as sharpening scythes, drills or serrations.[9]