The present invention relates to a mixer with a mixing container and a tool shaft (8) which is arranged at least partly in the mixing container and has a drive end and a working end for a working tool (6), the tool shaft (8) being mounted on the drive end by means of two mutually set-apart tool bearings and a drive motor (7) being provided for the tool shaft (8). In order to provide a mixer which is simple and economical to manufacture and has as few movable and wearing parts as possible and the tool shaft (8) of which is, in addition, able to accommodate the considerable transverse forces occurring during operation, the invention proposes that the drive motor (7) have a motor shaft which is mounted, at least on one side, by a tool bearing.