#3 has nothing to do with wire crimping, it functions as a wire cutter and stripper; the tool pictured is the same as mine, and has no parts missing; I was just ready to take some pics of mine in use, but the camera battery protested and asked to be recharged --- more later on. This tool is German made, I bought mine about 40 years ago from a German guy who drove around several states from his home in Washington state. He had a van load of German tools, which he imported directly from The Fatherland, lots of very nice knives, branded with his name. I miss you, Rudolph H. Kuhn --- !