The device has male and female gripping jaws (1, 2) moved relative to each other using a jack, and carrying a sectioning block (4), front arched prong (7) and leveling pads (10a, 10b) to section a metallic profile. The sectioning block is embedded on ribs (6) of the male griping jaw through grooves. The male gripping jaw presents internal threads that are distributed symmetrically with respect to the grooves.
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