The Coastel CableTools 24-311616D/1505A is a Cable Cutter Head designed for the Port-A-Strip Hand Held Cable Stripper (sold separately). Each Cutter Head is factory set for a specific cable and connector combination so we need to know what you're working with.
The 24-311616D/1505A Cutter Head is set for Belden 1505A cable and Kings 2065-2-9 connectors. This head will NOT work with any other combination of cable and connetors. See the CCT-ECH for other cutter head options or CCT-715 Kit for the stripping tool and cutter head you need.