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Cutting speed may be defined as the rate at the workpiece surface, irrespective of the machining operation used. A cutting speed for mild steel of 100 ft/min is the same whether it is the speed of the cutter passing over the workpiece, such as in a turning operation, or the speed of the cutter moving past a workpiece, such as in a milling operation.
Freddie had an antique wall sconce with a mirror, the kind that used to hold a candle, and he lit the taper he had placed in it. And in that dark and suddenly silent theatre with his back to the audience, he began laboriously and slowly to go down one side aisle of the theatre, across the front below the proscenium, and up the other side.