The invention relates to a scraper device (10), which comprises a base and a rod (12), a knife (14) and the rod (12),The base is arranged to receive the end of the rod ((12b) ((12)). The base includes a motorized mechanism (20a) configured to mate with the rod so that when the mechanism is operated, the rod and the base rotate relative to each other so that on each complete lathe, the tool moves down in the direction of the base (20) and has a predetermined displacement.
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