Abstract: A workpiece bending press has a vertical ram with a lateral through-hole near the bottom. A first elongated mandrel has an end that mounts in the through-hole. The first mandrel mounting end has a cavity that receives an end of a second mandrel. The first mandrel then extends from a first side of the ram, and the second mandrel extends from the opposite side of the ram. Workpiece forming blocks may be placed under each mandrel, providing two different mandrels and forming blocks on the ram at once for different pressing stages or different workpiece diameters. One or both mandrels may be part of a set of interchangeable mandrels with different outer diameters. The ram may be operated by a lever that is quickly movable to the left or right side of the press for convenient use of mandrels extending from the left and right sides of the ram.