I am extremely pleased with this tool. to Verlgiech I have bought one of the Network Setup Set. The witness works it contains are processed but worse many times. There the network cable can not hang well on patch panel, because the Punchdown mechanism either tilts, or the wire is not pinched off. That has never happened in this device.
All cables that were clamped with this tool, reach me 1GBit data throughput (geteset with JPerf)