As I mentioned I spoke with Dynomec Ltd (www.lockingwheelnuts.com)
and the guy there was extremely helpful.I used an impact driver along with my partial lock key and all was well.I jarred the bolts sufficiently and was then able to withdraw them using a normal T-bar and socket.
Boy am I glad.!!
Now I can start on the real work which is strut replacement and new font discs and pads.
You must admit this is much more fun than one of those computer driven heaps.
Thanks for all your help everyone.
regards
Dave