Explanatory notes
… (e.g., for milling grain (upper or lower stones); pulping wood, asbestos, etc.; paper-makers’ or paint mixers’ … grindstones). (2) Grindstones for sharpening cutlery, tools, etc. , and designed for mounting on hand, pedal or … cutting discs, which may be of considerable diameter, these goods are usually much smaller than those described above , …