The name diamond is a bit confusing, making people think it is a very hard stone.
In fact, diamond is not a stone, but a very thin metal plate, a material made of carbonaceous raw materials and metal, with a layer of diamond attached to its surface.
Although it is not a stone, but consistent with its name, it is very hard, much harder than other types of whetstones.
Therefore, for some novices, they may not master it well and leave scratches on the blade.
The main advantage of diamond is that the sharpening speed is very fast.
The second is its shape. The whetstone is generally flat.
In the process of continuous use, the shape of the natural whetstone will change from the original flat shape to curved or concave in the middle.
The diamond is easier to maintain the original flat shape during use.
