- Versatile Design: The architect's key is a multi-functional tool essential for operations during construction when profile cylinders and accessories are not yet installed. - Emergency Functionality: Equipped with a 3 mm Allen key at the tip and a short gear with a flat cam, this universal key allows for quick emergency openings, ensuring you are always prepared. - Measuring Capability: Designed for room doors, this universal key features a measuring scale that allows you to accurately gauge cylinder lengths from 25 mm to 75 mm, ensuring compatibility with various locks. - Multi-purpose Use: The architect key shell includes three square closures in sizes 6 mm, 7 mm, and 8 mm, making it ideal for checking heating valves and accessing style grids. Use Scenarios: 1. Construction Site: Utilize the architect's key to operate door locks and valves when setting up a new site, ensuring smooth progress from the start. 2. Maintenance Tasks: Quickly access heating valves or open style grids in residential or commercial properties, streamlining routine maintenance checks. 3. Emergency Situations: Rely on the emergency opening feature to gain access to locked areas during urgent scenarios, enhancing safety and response time. This architect's key combines functionality and practicality in one compact tool, making it a must-have for professionals in construction and maintenance.