A lathe with a lead screw and a drawing spindle, comprising a main slide movable back and forth manually on a machine bed in a z-direction and a cross slide movable back and forth manually on the main slide in an x-direction, which runs perpendicularly to the z-direction, wherein for a manual movement of the main slide a first handwheel is provided, wherein for a manual movement of the cross slide a second handwheel is provided, wherein, if the first handwheel and the second handwheel are actuated, the corresponding slides (1, 2) are moved exclusively mechanically, i. e. without interpositioning of electric drives, a first drive with a first motor which is connected or can be connected via a first gearing to a main spindle, a second drive with a second motor which is connected or can be connected via a second gearing to a lead screw and/or a drawing spindle, a first rotary angle detection device for detecting a first rotary angle of the first drive or the main spindle, a second rotary angle detection device for detecting a second rotary angle of the second drive or the lead screw and/or the drawing spindle, and a controller connected to the first drive and the second drive and also the first and second rotary angle detection device, which controller is designed such that a first rotary movement of the main spindle can be coupled with a second rotary movement of the lead screw in accordance with a predefined gear ratio, wherein the controller is designed to perform a thread-cutting mode in which a gear ratio between the main spindle and the lead screw corresponding to a thread pitch predefined by a user is set by means of a predefined algorithm depending on said thread pitch, wherein the controller comprises a first switch means to be operated manually for activating the gear ratio and wherein the controller comprises a display means for displaying the presence and the absence of the gear ratio. a main slide movable back and forth manually on a machine bed in a z-direction and a cross slide movable back and forth manually on the main slide in an x-direction, which runs perpendicularly to the z-direction, wherein for a manual movement of the main slide a first handwheel is provided, wherein for a manual movement of the cross slide a second handwheel is provided, wherein, if the first handwheel and the second handwheel are actuated, the corresponding slides (1, 2) are moved exclusively mechanically, i. e. without interpositioning of electric drives, a first drive with a first motor which is connected or can be connected via a first gearing to a main spindle, a second drive with a second motor which is connected or can be connected via a second gearing to a lead screw and/or a drawing spindle, a first rotary angle detection device for detecting a first rotary angle of the first drive or the main spindle, a second rotary angle detection device for detecting a second rotary angle of the second drive or the lead screw and/or the drawing spindle, and a controller connected to the first drive and the second drive and also the first and second rotary angle detection device, which controller is designed such that a first rotary movement of the main spindle can be coupled with a second rotary movement of the lead screw in accordance with a predefined gear ratio, wherein the controller is designed to perform a thread-cutting mode in which a gear ratio between the main spindle and the lead screw corresponding to a thread pitch predefined by a user is set by means of a predefined algorithm depending on said thread pitch, wherein the controller comprises a first switch means to be operated manually for activating the gear ratio and wherein the controller comprises a display means for displaying the presence and the absence of the gear ratio.