Whether it is grinding on a sharpening rod, a sharpening stone, a grinding wheel or the side of a water tank, the essence of the sharpening is the same, that is, the problem of the contact surface of the tool and the sharpening tool in the mutual movement. In daily life, in most cases, we have to prevent damage to the equipment. The unique sharpener is to intentionally damage the excess part to ensure that the blade is completely exposed. Having said that, you will understand that the key to sharpening is the angle. That is, by moving toward each other at a reasonable angle, the excess metal on both sides of the blade is polished away.
The industry is developing as a whole. The whetstone sold in the market for less than 10 yuan is a very good whetstone. The hardness and roughness of the two grinding surfaces are different. It is improving to some extent. It replaces the traditional whetstone because it saves time and effort. In other words, the traditional whetstone can only be used as a supplementary role for the whetstone at best. After the knife is sharpened, it is still good to use it for planing. If your knife is really hard, it is estimated that the effect of traditional whetstone planing will be invalid, ha ha.
By the way, I can guarantee that Whetstone can grind your knife. But I want to make another point. If your tool is really very hard, it rarely needs to be sharpened, so there is no need to worry about this problem.
Your sharpening stick is just a promotional item from a business or manufacturer. One is not necessarily that good, and the other is it is really not suitable for family use. Why do you say that? The meat sellers in vegetable farms do use it often. That's because the butcher's knife sharpener has become a kind of prop in their business. Besides, their knife is a one or twenty yuan knife, which is sharpened. It doesn't matter what kind, the big deal is another one. What's more, they have completely mastered a reasonable angle of sharpening in their performances over the years. If you use a sharpening stick at home, it will be a very painful thing. The noise is loud and it takes a long time. Who can stand it? Besides, you have to master the angle and technique of sharpening, which is too painful.
