The universal key for building technology is a versatile key for opening heating and plumbing systems, air conditioning and ventilation, switch cabinets in electrical engineering, gas and water supply, system locks and much more.< /p> The key has many square keys, triangular keys, socket wrenches and socket wrenches. As an additional tool, a 1/4 adapter is attached to the chain to accommodate the reversible drill (double drill) with cross and slot Thanks to its compact dimensions, this multi-tool is the ideal companion for all builders. carers, apartment managers and more. Made of zinc alloy with electropolished surface, durable and anti-rust Note: Please make sure the size is suitable for your device before purchasing! < div data -a- expander-name="aplus-expander-module" data-a-expander-collapsed-height="700 " class="a-expander-collapsed -height a-row a-expander-container a- expander-partial-collapse- container"> < div class=" apm-spacing apm-fixed-width"> Product description