An essential tool for control cabinets and shut-off systems in the supply of gas, water and electricity, this universal control cabinet key from Knife (Model 00 11 04) is a must-have for use in technical installations in buildings to control air conditioning and ventilation systems, shut-off valves and main switchboards. This model includes 3 different key profiles, a multi-purpose wrench key, bit insert, and adaptor in a weight-optimized zinc die-cast design. Sometimes we give our pliers a really hard time. We try to destroy them to find out what makes them good and long lasting. Because we don't want to leave anything to chance, we take a long, careful look. The steel Knife uses is precisely hardened with a maximum of 0.8% carbon and defined parts of chromium and vanadium, guaranteeing optimum cutting performance and service life even though it requires special production and costs a bit more. But our high product demands require this. Knife also looks closely at the small details. The angles, the sharpness, the hardness, the toughness of the cutting edges. The precision and smooth movement of the joint. The handle design and the finish. We keep reviewing these subjects, we research, we test, and we improve our pliers.