Compact, handy, light. Drive unit with short tubular arms only 1.6 kg. Works any where, free-hand, overhead, in confined areas. Secure seating of pressing tongs through locking pins. Dividable tubular arms for individual adjustment of leverage to accomodate different force demands of different pressfitting systems. A perfect joint is achieved when pressing tongs close completely. Finallock positioning, the pressing jaws remain in a closed position until opening. This way, the perfect pressing joint (completely closed pressing jaws) can be observed.