What is a radiator tail socket driver?

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Parts of a radiator tail valve socket driver

 Socket for fast removal of radiator tails 

The parts of the socket tail driver are:


  • Fitting to go into the chuck of an electric/cordless drill or ratchet spanner with 10mm hexagonal socket

  • Shaft

  • Socket that fits onto the the integral external hexagonal nut of some valve tails


Socket trail driver fitted to drill


This socket-type radiator tail driver which fits into a cordless or mains-powered drill can save lots of time.

 Radiator tail valve with built-in nut 

Many valve tails have integral external nuts moulded or built into them, as shown here. The tail driver is for standard 1/2 inch radiator tails with external hexagonal nuts.


The alternative is to use an open-ended spanner of the right size, or an adjustable spanner.

 Radiator tail socket - where it goes 

The valve tail is installed first, using the driver, before the valve is attached to the tail.

 Radiator tail driver - close-up of socket 

Tail drivers are normally made from hardened steel or chromium-vanadium steel - a very hard and durable alloy.


See How to use a radiator tail socket for details of how this driver works.

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