steel spade and shovel
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can knife the best farmer tool from factory
1, first observe the blade: the blade toward the eye, so that the knife surface and the line of sight into ≈30°.You’ll see an arc in the blade — a white blade line, indicating that the knife has become dull.
2, prepare the whetstone: Be sure to prepare a fine whetstone. If the blade line is thick, also prepare a quick rough whetstone, used to sharpen the knife quickly. If you don’t have a fixed sharpener, you can find a thick cloth (towel type) to pad under the sharpener stone. Pour some water on the whetstone.
