Repetitive, high crimping quality due to precision dies and integral lock (self-releasing mechanism). Crimping pressure has been set precisely (calibrated) in the factory. Capacity - 0.5 to 6 mm² and 20 to 10 AWG. Optimum transmission of force due to toggle lever for fatigue-reduced operation. Chrome vanadium electric steel in special quality, oil-hardened. Pliers burnished. Handles with multi-component covers.