I bought these pliers to work with mail. I have several other Knipex products and I have the feeling that one of the two pliers I received didn't quite meet my expectations from Knipex in a few small respects. There was a small burr/imperfection at the tip of one of the pliers that I could probably sandpaper away if needed. The springs that open the pliers were misaligned, but they bend easily in place. The jaws of the pliers fit well, but not perfectly. For all that, they are fully functional and I don't want to suffer with their replacement. Another pair of pliers seems to be much better in terms of build quality. These pliers are great for what I use them for which is manipulating steel/aluminum wire from 18ga to 20ga.