Abstract: An apparatus for bending an elongate member with a pair of spaced parallel planar flanges which normally extend from the planar web to form a channel section. The apparatus includes a platen shaped for close fitting engagement with the exterior web and flange faces of the elongate member in a region where the elongate member is bent. The platen also includes a counter-pressure member, one surface of which engages the exterior face of the web of the elongate member in the bending region. The counter-pressure member is capable of being selectively advanced or retracted within the platen. A movable head member shaped for close fitting engagement with the interior web and flange faces of the elongate member in the bending region has projections which apply a force in the bending region acting in the planes of the flanges on longitudinally spaced portions of the elongate member for relative displacement of the portions.