For coating a cutting tool with an aluminum oxide layer, a bonding layer has been provided that is preferably formed by aluminum titanate and has a flake-like crystal structure. The oil, which has been scooped up and scattered by the rotation of a clutch, is captured within a concave groove provided within a cylindrical inner surface of a case cover facing the clutch. A tensioning device is arranged in the front region of the device, and a sealing device is arranged in the rear region. An event corresponding to the property component may be mapped with an action for the media object.