New crimping carabiner, characterized in that it is constituted by an appropriately shaped shank which at least has a rectangular plane at the long end when the shank is cylindrical and at both ends of the shank there is, respectively, a hook in one of them and in the other a nipple of crimping of the ring of free rotation, existing practiced in a determined point of the total length of the aforementioned shank, a perpendicular orifice, passing from one point to another, in which through hole are introduced two boxes in the shape with the hole with intercalation in them of a helical spring, which ends are supported, respectively, protruding, cylindrical, axial, frustoconical, acting on the inside of each box, while on the external surface of the at the base of each box there is a projection in the form of an arched end and the stem is fitted with a sliding external cover, shorter than the stem, which it has two orifices significantly greater than the mulons, one opposed to the other, to allow such holes the emergence only of the head of the respective arched stump of the cassettes of the rod and retaining the body of the cassette because it is larger than the diameter of the holes. Of the sheath located, preferably, at the bottom of a depression made in the wall surrounding each hole to allow the emergence of such suckers by the perpendicular holes and in turn not protruding from the level of the surface of the sheath, which presents, in addition, on one of its edges, a rectangular, straight, rigid, flat appendix, with bevelled edges, guided and retained by said edges that when plugging the sleeve to the stem, the rectangular appendix, straight, rigid, flat, goes into by testa and lateral sliding between the raised edges limiting the rectangular plane, straight, elongated, practiced on the body which raised edges present its surface inclined inward with the same inclination as the bevel edge of the rectangular appendage, straight, flat and rigid so that, when the sheath is plugged into the stem, a crimp is produced by a dovetail that keeps the sheath fixed to the stem in the direction to prevent the rotation of one of them in relation to the other and also form the closed wall of the mouth of the hook while the trunnions determine the interlocking axial of each of both parts and the lug with annular groove of the rod protrudes from the opposite end at which the laminar, straight and rigid prolongation is found and the opening of the hook of the link of the carabiner is made when the two stumps are tightened towards each other, then overcoming the action of the transverse spring disposed inside the transverse hole of the stem with what is released the carrying case of the rigid protruding strip and thus can be delayed along the stem also allowing the sleeve, displaced, that its walls located beyond the mouths of the partial emergency transverse hole of the trunnions of the floating cassettes, the said trunnions are inside the transverse hole by overcoming the action of the transverse spring and the same stumps pressing to salt once against the internal circular wall, the cover rubs and brakes it so that to maintain the total or partial hook opening, it is not necessary to keep pressing the control with the fingers of the user's hand, so that in this way free such a hand so that it can act independently of sustaining the opening of the hook. (Machine-translation by Google Translate, not legally binding)