The fixing of the blades remains fragile (plastic screw), and for some of them, this prevents a supported work. This is not the case for wider blades that hold well "to the handle" but rather relates to thin sections. The problem is related to the fact that the width of the blades is constant along their entire length. This could be remedied by homologating the width of the part of the blade intended to fit to the width of the handle. It would take much better, offering maximum outlet tightening.
