Solid Brass Radiator Keys - Radiator Bleeding Key - Radiator Valve Key - Venting Air Valve - Radiator Key Bleed Key UK - (Pack of 2) - GoldUltimate Radiator Key Solution: This brass radiator key is the perfect tool for bleeding your radiator valves safely and effectivelyEfficient Radiator Bleeding: Say goodbye to the hassle and frustration of bleeding your radiator valves with this convenient and easy-to-use radiator key bleed key UK wide compatibleDurable and Long-Lasting Design: Made from high-quality brass, this radiator bleeding key is built to last and withstand frequent useUniversal Fit: This radiator bleed key is compatible with most standard radiator bleed valves, making it an essential tool for any homeowner or professional plumberSafe and Accurate Bleeding: With its precise design and smooth grip, this radiator valve key ensures safe and accurate bleeding without damaging your radiator valves. The pack contains 2 radiator keys. Square socket dimension: Socket depth - 12mm, Socket size - 5mm, Outside diameter - 9mmBleed your radiators easilyRadiator KeyQUERGO radiator key is made with a square opening which will fit most radiators in the UKEasy to useDesigned to conveniently open and close radiator bleed valveSolid BrassThe key is made of solid brass. The metal construction is more durable than plastic.Solve a cold radiator problemIf your radiator is cold in various places it means that there is air in the heating system