| 摘要 |
The invention relates to a motor-driven machine tool having a rotationally drivable tool, comprising a tool shaft, on the face of which a fastening device is provided for receiving and fastening the tool. The fastening device is detachably received on the tool shaft. An auxiliary tool for loosening the fastening device has a pull-off unit for loosening the mounting device, the unit engaging the fastening device on the tool shaft from behind, and a support part on the pull-off unit, the part supporting the pull-off unit in the operating mode using a supporting and loosening force on the machine tool. A further auxiliary tool for disposing the fastening device on the tool shaft has a clamping part, which is to be firmly connected to the machine tool in the operating mode, and a pressing unit for applying pressure on the fastening device, wherein the pressing unit is disposed on the clamping part in an adjustable manner
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