… working by removing metal or cermets, not elsewhere specified or included. …
Explanatory notes
… are power‑driven but similar machines, worked by hand or pedal, are also covered by this heading. These latter types … they operate by means of a mild steel disc with a toothless periphery. This disc, which may be fluted, is rotated in such a way as to give it a peripheral speed such that if the periphery of the disc is …