Sharpening stone is a common tool for sharpening knives,commonly known as whetstone.
The right hand grip the handle while sharpening the knife, and the left hand finger gently presses the knife face and moves clockwise.
The surface of the grindstone should be kept moist. The blade surface and the grindstone surface should maintain a stable and invariable angle, the chip on the knife surface will prompt you the corresponding angle.
Do not force the left hand finger when the knife face is pulled back, it is easy to cause the reverse mouth.
The gradual decompression of the sharpening of the knife will make the blade delicate and sharp. The other side should also be clockwise grinding back and forth.
