Multi-purpose tool for locking systems of electric, gas and water enclosures and other technical installations in buildings such as air conditioning and ventilation systems, shut-off valves, mains consoles etc. - Double-Joint design for improved ergonomics and high torque application - Compact profile for additional comfort and ease of storage - 360° rotating key heads with double function for convenience and versatility - Durable Die-cast Zinc construction with glass reinforced polymer casing - Details of keys: Square: 5, 6, 7 & 8 mm Three-Square: 7, 8 & 9 mm Two-Way Key 3-5 mm