11 ... 11 times after use of the clamp, it broke. In fact although metal, the portion in which the connector is housed (and thus which party bears the pressure) is low-quality plastic ... I have not yet forced a first part cased after 5 uses, at this point we could still use it but after some qq more, everything broken, unusable clip. For the rest of the contents of this kit: Although light manufacturing, the tester works well. The box containing the catch is useless, really tiny compartments, one wonders how she can serve well ... The two clamps are good and useful Other tools (allen wrenches, screwdrivers and socket, ...) are of very low quality range and above are useless to work on network installations. EB summary: The two main tools are the tester crimp tool ... everything else seems to have been placed in this box to justify a price way too high for the poor quality of the whole ... Also note: It is false to claim that this kit has 54 pieces ... to get to this total, it takes screws and useless IDE connectors contained in the box ... it is a bit limited to present this as 54 tools Oh I forgot: the zipper of the bag broke after qq jours.d'utilisation.