Tool holder, in particular a milling cutter holder, which comprises a main body (1) with a substantially oblong cylindrical shape defining a channel in which a transmission (2) passes designed to transmit to the tool, in particular the milling cutter, a movement from the axis of a drive motor, and a gripping element (3) for gripping the tool holder, characterised in that an intermediate part (30) is provided arranged between the transmission (2) and the axis of the drive motor, the intermediate part comprising means for enabling the rotatable connection of said intermediate part to the transmission and the axis of the motor, the intermediate part comprising means (32) forming an abutment designed to lock in translation in the longitudinal direction of displacement of the axis of transmission by abutment in particular against the gripping element.
