1. KEY: Inside square 6-9 mm / outside square 5-10 mm / double bit 3-5 mm / inside triangle 7-11 mm / reversible bit for 7 mm slotted screws 2. IDEAL FOR: Ventilation technology, air-conditioning technology, control cabinets, windows, doors, garbage cans, gas supply, water supply, locking systems, on construction, building technology, locking systems in electrical engineering and much more. 3. DURABLE: The construction key is very stable and robust thanks to the weight-optimized zinc die-cast construction and the high-quality surface coating 4. SMALL & LIGHTWEIGHT: With a length of 8.7 cm and a length of 8.7 cm, the multi-function key is very handy and space-saving - ideal for the tool case and trouser pocket 5. SCOPE OF DELIVERY: 1x multifunctional key with different keys, reversible bit & chain