Features 1、Good Compatibility: The radiator key handle is ingeniously designed with both imperial and metric sizes, making it universally compatible with all radiator types. Whether you're dealing with vintage radiators or modern units, this key fits them all, including those with standard 5 x 5 mm valve sizes. 2、Unbreakable Alloy Steel Construction: Manufactured from excellent alloy steel material, the radiator vent valve key promises excellent strength and durability. This robust construction ensures good performance when bleeding radiators, offering peace of mind that it won’t bend or break under pressure. 3、Easy Access: Featuring a super thin and longer handle compared to traditional radiator keys, this radiator bleeding air valve key allows for effortless operating. It excels at accessing hard to reach valves, ensuring that even the most awkwardly positioned radiators can be bled with ease. 4、Enhanced User Experience: The ergonomic design of the radiator exhaust valve handle key offers excellent usability. Its extended handle not only reaches tricky spots but also provides added leverage, making the process of releasing trapped air smoother and more efficient than ever before. 5、Versatile Tool: Compatible with all standard radiators featuring 5 x 5 mm valve sizes, the radiator exhaust handle is a versatile tool that should be part of every homeowner's toolkit. It eliminates the need for multiple keys and tools, streamlining your radiator maintenance routine. Specification Item Type: Radiator Vent Valve Key Material: Alloy Steel Suitable Range: Compatible with all types of radiators with English and metric radiator key sizes, including old and modern radiator key ventilation holes. Compatible with all standard radiators with standard valves with a size of 5 x 5mm. Application: for Various Brands and Models Package List 1 x Radiator Vent Valve Key