A standard South Bend lathe specially adapted to bore screwcutting gearbox casings with, on the end of its bed, a finished workpiece and, to the left, the rack of special tooling applied in stages as the job progressed.

One of the eight modified lathes known to have been used by South Bend to bore both headstocks and tailstocks. The surface plate for checking the finished work has been pushed between the lathe's legs.