Novel exendin peptide compounds are provided. The hydraulic fine blanking head includes an adjusting mechanism having an adjusting nut provided with an internal motion thread engaged with external motion threads on a main cylinder, the adjusting nut being turnable around a stroke axis, a sprocket wheel rotatable at a frontal surface of the adjusting nut, a hydraulic motor driving the sprocket wheel, and a brake for the motor shaft. The PPI includes a PPI line have a first width, and a PPI pad having a second width greater than the first width. The second layer has a melting point greater than 135\xb0 C. Said driven support allows adjustment of the saw blade in different angular positions in the rotational direction around its rotational axis. The reversibly reducible metal complexes are complexes a redox active metal center and at least one ligand; wherein; following a reduction of the complex, adding 1 extra electron to the complex, the extra electron is localized on the metal center.