Abstract: A lathe exhibits a vertically positioned, motor-driven work spindle on whose lower end are positioned workpiece clamps, an initial compound slide system (19) by means of which the work spindle can move vertically in the Z1 direction and horizontally in the X1 direction, at least one initial stationary tool holder (22), and at least one second tool holder (46) which can execute an advancing action in at least one direction during the machining process. The advancing movement of the second tool holder (46) is independent of the control of the first compound slide system (19). The second tool holder (46) can be moved in controlled fashion along two axes by a second compound slide system (28, 30, 32, 34).

Abstract: A lathe exhibits a vertically positioned, motor-driven work spindle on whose lower end are positioned workpiece clamps, an initial compound slide system (19) by means of which the work spindle can move vertically in the Z1 direction and horizontally in the X1 direction, at least one initial stationary tool holder (22), and at least one second tool holder (46) which can execute an advancing action in at least one direction during the machining process. The advancing movement of the second tool holder (46) is independent of the control of the first compound slide system (19). The second tool holder (46) can be moved in controlled fashion along two axes by a second compound slide system (28, 30, 32, 34).

Abstract: The milling tool, in one form, has a shank having a shank rotation axis, a first cutting-edge carrier having at least one cutting edge and at least two arched areas and a second cutting-edge carrier having at least one cutting edge and at least two arched areas. The arched areas are shaped and positioned to form a tubular socket in which the shank is attached with both cutting-edge carriers radially projecting in a lobe-like manner from the shank and being rotatable about the shank rotation axis. The at least two arched areas of both cutting-edge carriers are spaced from each other axially, have surfaces normal to the shank rotation axis, arch in the same direction and are displaced from and parallel to the shank rotation axis so that the first and second cutting-edge carriers mutually overlap to form the tubular socket for the shank so that, when the shank is attached in the tubular socket, the cutting-edge carriers are locked against each other.