The quality of Pinward's wall-breaking extractor is so poor that even the grinding powder has small particles, so it is not so good to talk about wall-breaking!
Generally, the crushing fineness of small household pulverizers for self-care can only reach about 250 meshes at most, and the wall breaking generally needs to reach 300 meshes. The grinding fineness of small pulverizer depends on the nature of the material itself, and the grinding fineness of different materials will be different in the same pulverizer. It is best to look at broken walls objectively.