"Set Square" wrote in message ...
In an earlier thread, I described a device which I had made to enable a
radiator to be drained prior to removal by pumping air in through the bleed
hole - thus pushing the contents up into the F&E tank (in a vented system
only, of course) rather than spilling it all over the carpet.

Ideally, the bit which screws into the radiator should have a shaped end -
like the original bleed pin - to fit the conical seat in the housing. In the
absence of a model-maker's lathe, I couldn't do this, but it seals well
enough - albeit not perfectly - on the threads with the use of a bit of PTFE
tape. Here it is when fitted to a radiator.
http://www.mills37.plus.com/fitted_to_rad%20.JPG


Nice one. How bout using a drill as the lathe? An angle grinder makes
an effective cutting/grinding tool, conventional tools arent much good
on a holderless drill lathe.

NT