Abstract: The bend-straightening machine (100) for workpieces (20) that are more long than wide, such as camshafts, pinion shafts, and similar items, includes one or more straightening dies (14) that bring about on the workpiece (20), between straightening bases that are placed on the machine table (10), a change in the shape of a bend. The straightening die (14) is mounted on a swiveling mechanism (30), which includes a two-armed lever (36) that can swivel around an axle (32') and that protrudes from the axle (32') on both sides. The straightening die (14) is joined with the one arm (36'), while a drive (31) that causes the swiveling of the two-armed lever (36) acts upon the free end (36") of the other arm. (FIG.