The machine tool comprises: a workpiece carrier assembly (1) arranged for horizontal movement in parallel with a horizontal axis; a tool carrier (2) configured for carrying at least one tool (201, 202, 203, 204, 208, 212) for machining at least one workpiece by rotating said tool; said workpiece carrier assembly (1) or said tool carrier (2) being displaceable between an operative position in which a workpiece carrier (11) is facing said tool carrier (2), and at least one inoperative position; the workpiece carrier (11) being arranged to be rotatable, to allow for a modification of the angular position of the workpiece (1000) in relation to the tool carrier (2).