<p>Machine tool having a first working spindle (4) firmly attached to a working carriage (2) and a second working spindle (8) on a support arm (7) which is pivotably mounted on the bearing housing (3) of the first working spindle. A swivel bearing (9) on the support for the second working spindle concentrically encloses the first working spindle and its bearing housing. A position cylinder (14) is coupled to the support arm.</p>
