For solder-free electrical connections. The ingenious lever transmission reduces the handforce up to 30% compared with regular crimping pliers. Repetitive, high crimping quality due to precision dies and integral lock (self-releasing mechanism). Crimping pressure has been set precisely (calibrated) in the factory, re-adjustable. Two-hand operation for easy crimping of large conductor diameters. Easy handling as a result of well balanced centre of gravity, angled head and ergnomically shaped handles. Chrome vanadium electric steel in special quality, oil-hardened.