In itself, well thought out, the Stripper works at reasonable cable quite good (I've been practicing for a couple of cable residues). But at the Kathrein LCD 111 cable, which I have laid, it has clearly failed. This cable has a very robust outer insulation, so that does not work the first step without massive pressures of the hand and the result will not be optimal. In the second step, he then cuts not sharp enough, so that the fine wires of the outer conductor are cut partially twisted or not completely and you have to be extremely careful that this then afterwards do not touch the inner conductor. Conclusion: rather spend a few euros more and save time and calluses