The peeling machine, comprising: a rotating head installed rotating about an axis of rotation and provided with a central cavity in which, during use, there is disposed an elongated product to be worked; the rotating head is provided with a plurality of tools and with at least one adjustment unit configured to move the tools away from or toward the elongated product; a first motor configured to make the rotating head rotate about the axis of rotation; and a transmission unit configured to transmit motion from a second motor to the adjustment unit in order to simultaneously adjust the radial position of the tools; the transmission unit comprises a differential device kinematically connected between the second motor and the adjustment unit so that an adjustment of the position of the tools with respect to the elongated product corresponds to the drive of the second motor.