Drum for a chopping device, in particular a precision chipper

A drum for a precision chipper comprising a shaft and at least two discs arranged in parallel on the shaft, cutting tools are provided on outer circumferences of the discs in blade holders, and elongated distancing pieces each having a supporting surface or contact surface on outer circumferences of the discs, height of the discs determining a chip size for a chipping process, wherein a level of the distancing pieces on the discs can be set or changed, wherein the distancing pieces, seen in cross-section transversely to longitudinal extensions of the distancing pieces, are configured T-shaped with an upper web having two form fitting surfaces corresponding with an outer radius of the outer circumferences of the drum discs, wherein the form fitting surfaces are displaced to each other, so that the distancing pieces can be placed on the outer circumferences of the discs in two different height positions relative to central axes of the discs by the form-fitting surfaces.