Abstract: Apparatus for cutting a metal workpiece including pipe in any desired shape and in a cutting cycle governed by a numerical controller having a plurality of separate output control signal channels. The apparatus is highly versatile and automatically operable to cut any preselected contour in accordance with control or program instructions carried on a control tape. In an illustrative embodiment of the cutting apparatus, a metal cutting torch is supported on a first support and the workpiece to be cut is mounted on a second support so arranged relative to the first support that the relative movement between the workpiece and the torch allows a cut to be made along X and Y axes at right angles to one another. The cutting torch is power driven about its own longitudinal or W axis by a reversible motor and is power driven about a fourth or Z axis to vary the bevel of the cut.