The set is highly recommended - without these tools to network cables can not be processed. For those who do not know: - The LSA-tool is a kind of "Aufdrück" tool with which you pressed the veins in network sockets and connectors. It simultaneously cuts off overhanging cable length. Since it is made fit for the intended use, you should use this necessarily - when pressing the cores with other makeshift such as screwdrivers, risking broken cables, bad connections and has compared a lot more effort. - The cable tester is essential. Especially when selbstcrimpen plugs there are many sources of error, for beginners, it is - with all the tools - but a test of patience. The cable tester confirmed at least that you worked clean and where still there are errors. For me, something rattles in the housing, but is still working properly. Note: The required 9V battery is not included. - The crimping tool is just like the LSA tool essential if you plug crimping needs. Workarounds like screwdrivers lead nowhere and cause errors. - The Stripper is enormously helpful, because other tools are bad for network cable and accelerates the process enormously, especially in the coat. It puts it on, turns in a twice-around cable and then accurately cut the coat. For the stripping of individual wires I could work better with a conventional gun.
Overall, an excellent set for a very good price. By comparison, the local Conrad Elektronik me only the crimping tool was (without the rest of this set) for more than 70 EUR offered alone.