Many people probably don't know the Diamond cup grinding wheel very well, but they know something about grinding wheels. So do you know the history of grinding wheels?

A grinding wheel is a kind of abrasive tool. In the process of use, the abrasive grains will partially or completely fall off from the abrasive tool when the abrasive grains are blunt. New cutting edges or new sharp abrasive grains constantly appear on the abrasives, so that the abrasives can maintain cutting performance for a certain period. This kind of self-sharpening of abrasive tools is an outstanding feature of abrasive tools compared with general cutting tools.

As early as the Neolithic Age, humans have begun to use natural grinding stones to process stone knives, stone axes, bone tools, angle tools, and dental tools; in the 19th century, there appeared ceramics made by combining natural abrasives and clay in the United States. Grinding wheel: Around 1900, artificial abrasives came out, and various abrasives made of artificial abrasives were produced one after another, which created conditions for the rapid development of grinding and grinders. Since then, the proportion of natural abrasive tools in abrasive tools has gradually decreased.

The above is the development history of grinding wheels, and Tungsten carbide hole saws , as a kind of hole saw, also has its development history.