Item description: -Easy to use: The double-sided grindstone with rubber base prevents slipping. Suitable for almost straight razors, precision tools, planers and chisels. Note: Please select the required grit. The smaller the particles, the stronger the grinding. -Instructions for use: 1. Before use, it needs to be immersed in water for 15 minutes, and then placed on a stable surface. 2. First, use a small grinding surface to grind finely at an angle of 10 to 20 degrees, squeeze the knife out with a small force, and then gently pull it back. 3. Then, without applying too much power, polish the knife with a larger grinding surface. - Note: 1. You must not only use the center of the whetstone, but also fully use the surface of the whetstone. 2. Do not use sharpening stones to polish serrated blades and ceramic knives.
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