… without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and …
Explanatory notes
… without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and … and grindstones , often of considerable size, for crushing, grinding, pulping, etc., (e.g., for milling grain … the cutting of metals, stone, glass, plastics, ceramics, rubber, leather, mother of pearl, ivory, etc. Except …