Gambit Silicone Carbide Combination Stone Knife Sharpener for Both Knives and Tools Knife Sharpening Stone  (Ceramic)

Carbide combination stones have both coarse and fine grit carbide surfaces. These fast-cutting stones are used to sharpen edges on tools to moderate tolerances quickly. Stones are very fast cutting and while a thin clear oil is usually sufficient. These softer stones have several advantages over harder stones. Because they are softer, they do not become glazed or loaded with detritus. Plus, they are lubricated effectively with water rather than oil, but can be used with either. There are a number of ways to sharpen knives and tools, but water stones are the preferred method, because the user has absolute control during the sharpening process.