Designed for the safe and secure crimping of boot lace ferrules to wire sized between 0.14 and 2.5mm2. 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.