2-piece black bleed key set, with a 5mm square inner diameter, universal for all radiators, socket wrench, for heating

[RADIATOR VENTILATION ENSURES BETTER HEATING PERFORMANCE AND LESS NOISE] Is your radiator bubbling and not heating properly? Then you need these radiator bleed screws with a 5 mm square drive.

[FITS MOST RADIATORS - 5 MM DIAMETER SOCKET WRENCH] This radiator bleed screw has the most common 5 mm square drive size in Germany.

[BLEEDING WRENCH WITH CONVENIENT HANDLE] The convenient handle of the radiator wrench allows you to open the radiator valve with much less force.

[RADIATOR BLEEDING WRENCH WITH TWO ROUND HOLES FOR YOUR KEYRING] The handle of the radiator wrench has two convenient openings - so you can take this useful tool with you at all times, even on your keyring.

[DELIVERY] 2 x universal bleed screws, Radiator Key in black, made of metal, ensures better heating performance and less noise.