The invention is based on a power tool, in particular a hand power tool, with a drive motor (12) disposed in a housing (10) and at least one adjusting device (14, 16), which can be used to durably set at least one parameter of the drive motor (12) and/or of a transmission during an operating phase....http://www.google.de/patents/US6983809?utm_source=gb-gplus-sharePatent US6983809 - Machine tool, especially a hand machine tool
