Designed for the safe and secure crimping of BNC/TNC connectors to coaxial cable. The C.K ratchet crimping pliers feature: Heavy duty body construction with hardened steel jaws - guaranteed for up to 30,000 cycles. Factory set crimp pressures for the optimum connection safety. Full cycle ratchet mechanism for safe, repeatable results and comfortable ergonomic handles. Suitable for type 58, 59, 62, 8X, 140, 141, 174, 210, 223, 303 and 400.