Patent ID: 7192338

Claim:
A tool co-operating with a fixing device, said tool comprising: a fixing device body in the form of a circular disk, with a central opening, and a radially inwardly facing locking surface, said tool which can be mounted on a machine tool or with which a machine tool is directly equipped; said fixing device comprising at least one radially outwardly facing projection of a locking mechanism, which can be actuated manually and with which said fixing device can be releasably connected to said tool, wherein in the locking position the at least one radially outwardly facing projection of the fixing device engages over said radially inwardly facing locking surface of said tool, said tool body axially secured and held non-rotatably relative to the fixing device, wherein the at least one radially outwardly facing projection of the fixing device and a support on said fixing device are arranged axially displaceable relative to each other, wherein the axial displacement travel is blockable by a centrifugal force device, wherein the locking mechanism is in the form of a bayonet locking mechanism by which the tool and the fixing device can be clamped fast in the locking position.