Attached are some pics of a NL4FXX, yes they are Torx, don't know why I said Allen earlier. They now come in two cable entrance size ranges, so you need to know the cable outside diameter your going to use.
Don't need anything special to assemble them, the special tools would be handy if your putting together dozens of them on a daily basis. They also make an assembly grip for the XX series xlr connectors, I looked into those but for $80 I can wear a rubber grip glove cheaper on long days of making up snakes and cables.