Abstract: Apparatus for bending elongated members transversely to a web thereof without substantially altering the cross-sectional configuration thereof including a flexible form having a plurality of pivotal seats and flexible plates. Flexible mandrels including a plurality of parallel plates are received within the elongated members and, in combination with a plurality of clamps, the flexible form and a press plate supporting the elongated member, prevent the bending forces exerted thereon from distorting the cross-sectional configuration of the elongated members. The flexible form distributes the exerted force required to bend the elongated member over a selected length thereof, thereby reducing the unit force exerted on any selected point to a level that will not buckle the elongated member.