1. IN A MACHINE TOOL, A FRAME, A SADDLE, GUIDE BAR MEANS TO SLIDABLY MOUNT SAID SADDLE IN SAID FRAME, A SPINDLE HOUSING, SHAFT MEANS LOCATED AT RIGHT ANGLES TO SAID GUIDE BAR MEANS, SLIDABLY MOUNTING SAID SPINDLE HOUSING IN SAID SADDLE, A CAM SHAFT ROTATIVELY MOUNTED IN SAID SPINDLE HOUSING, MEANS TO ROTATE SAID CAM SHAFT THREE HUNDRED SIXTY DEGREES, A WORK HOLDER FIXED TO SAID SPINDLE HOUSING, CAM MEANS OPERABLE ON SAID CAM SHAFT TO IMPART LONGITUDINAL MOVEMENT TO SAID SPINDLE HOUSING RELATIVE TO SAID SADDLE AND SAID FRAME, AND TO IMPART LATERAL MOVEMENT TO SAID SADDLE AND SPINDLE HOUSING RELATIVE TO SAID FRAME UPON ROTATION OF SAID CAM SHAFT, AND A ROTATABLE SPINDLE PROVIDED WITH A CUTTER, AND MEANS TO MOVE SAID CUTTER TOWARD AND AWAY FROM SAID WORK HOLDER WHEREBY A WORK PIECE HELD ON SAID WORK HOLDER MOVES THROUGH A CONTOUR PATTERN GENERATED BY SAID LONGITUDINAL AND LATERAL MOVEMENT OF SAID WORK HOLDER FIXED TO SAID SPINDLE HOUSING AROUND SAID CUTTER IN TIMED RELATION TO THE MOVEMENT OF THE CUTTER TOWARD AND AWAY FROM THE WORK PIECE AND WORK HOLDER.