… tongues arranged like the teeth of a comb, causing them to vibrate and produce the notes. The components are mounted on … saws . These have a special steel blade which is caused to vibrate either with a bow or a felt‑headed hammer. …
… or 84.67 , but this heading also includes tool holders for flexible shaft outfits. (See also the provisions of the … during turning, in order to prevent buckling and overcome vibrations set up by the pressure of the tool). (3) …
… cases, the original position of the seed crystal is still visible on its base. Unworked synthetic diamonds produced … are mostly square or rectangular in shape, usually lacking visible crystal shapes Synthetic diamonds may be …
