This WS78 crimp die is used for crimping many type of connectors from RG 6, 59, 62, 140, 210, belden 8279, 55, 58, 141, 142, 223, 303, 400 and fiber optic.
Interchangeable dies for "F", BNC, TNC, "N", teflon, thinnet PVC / teflon and fiber optic connectors are sold separately.