Sharpening Stone is a stone used for grinding a knife. Any sand rock can be grinded - gray slime sand rock may be the best.
Hold the knife handle with the right hand while the knife is grinded. The left hand fingers gently press the knife surface and move along clockwise direction. The surface of the grindstone should be kept moist. The surface of the knife and the grindstone should be kept in a steady and constant angle, and the debris on the surface of the knife will indicate the angle to you.
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