Create the final bevel You can find flat stones at hardware stores, hunting supply stores, sporting goods stores, and through mail order. A larger stone will make it easier to sharpen most knives, especially kitchen knives. A polished edge cuts more easily. Avoid using an electric sharpener of any kind. They remove too much metal from the blade, and have a tendency to create a wavy edge that will not cut with a clean, straight line.
Some knives are impossible to put an edge on.
These types are generally made of stainless steel, which is too hard to grind easily and doesn't seem to cut very well, either. If you were to peer at the point of a nicely sharpened, multi-purpose knife blade, it would look something like figure 1 . You'll notice that the blade is actually beveled to form the final edge, but you won't create that bevel just yet. First, you'll form the basic edge, which is a little simpler in shape, as we see in figure 1a . One of the key points of knife-sharpening is maintaining constant angles between the blade and the stone.