A machine tool comprising: - a machine frame having a first carrier side and a second carrier side, wherein said machine frame includes a first carrier portion, a second carrier portion and a middle carrier portion which is arranged between said first and second carrier portions; - a first spindle carrier which is arranged on said first carrier side of said first carrier portion and which holds a first work spindle for receiving a first workpiece; - a first tool carrier slide (51a, 51b, 51c; 53a, 53b, 53c) which is arranged on said second carrier side of said first carrier portion and on which a first tool carrier for tools (61, 63) for machining said first workpiece is arranged; - a first spindle carrier slide (42, 42a, 42b) which is arranged on the first or second carrier side of said second carrier portion and on which a second spindle carrier is arranged which holds a second work spindle facing said first work spindle for receiving a second workpiece, wherein the spindle axis of said second work spindle is parallel or coaxial to the spindle axis of said first work spindle and wherein said second spindle carrier is movable in a direction parallel to the spindle axes; and - a second tool carrier slide (52a, 52b, 52c) which is arranged on said first carrier side of said middle portion and on which a second tool carrier for tools for machining said first or second workpiece (W1, W2) is arranged, wherein said second tool carrier slide (52a, 52b, 52c) is arranged on said first carrier side between said first spindle carrier and said second spindle carrier and is formed as a compound slide, and said second tool carrier is movable in a first direction parallel to the spindle axes of said first and second work spindles (21, 22) and in a second direction transversal or perpendicular to the spindle axes of said first and second work spindles (21,22), characterized in that said second tool carrier slide (52a, 52b, 52c) further comprises a spin axis, by means of which said second tool carrier can be controlled to rotate about an axis of rotation of the spin axis which is transversal to the spindle axes, and said second tool carrier comprises a tool turret which has a tool-carrying tool turret head which is rotatably mounted about a turret axis transverse to the axis of rotation and which is displaced relative to the axis of rotation of the spin axis on said second tool carrier. - a machine frame having a first carrier side and a second carrier side, wherein said machine frame includes a first carrier portion, a second carrier portion and a middle carrier portion which is arranged between said first and second carrier portions; - a first spindle carrier which is arranged on said first carrier side of said first carrier portion and which holds a first work spindle for receiving a first workpiece; - a first tool carrier slide (51a, 51b, 51c; 53a, 53b, 53c) which is arranged on said second carrier side of said first carrier portion and on which a first tool carrier for tools (61, 63) for machining said first workpiece is arranged; - a first spindle carrier slide (42, 42a, 42b) which is arranged on the first or second carrier side of said second carrier portion and on which a second spindle carrier is arranged which holds a second work spindle facing said first work spindle for receiving a second workpiece, wherein the spindle axis of said second work spindle is parallel or coaxial to the spindle axis of said first work spindle and wherein said second spindle carrier is movable in a direction parallel to the spindle axes; and - a second tool carrier slide (52a, 52b, 52c) which is arranged on said first carrier side of said middle portion and on which a second tool carrier for tools for machining said first or second workpiece (W1, W2) is arranged,