A machining tool for chip-removing machining comprises a tool body (2) and a generator assembly for harvesting electric energy to be used i n the tool and having at least one fi rst component (5) secured to the tool body and a second com ponent (10) movably connected to the tool body so as to by moving with respect to the fi rst component through interaction therewith generate electric energy in the first component. The generator assembly comprises an arrangement for conducting a medium flow to hit and act u pon the second component for moving it with respect to the first component.
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