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  • Try soaking it in Oil (WD40 etc) for as long as you can stand not to fiddle with it (I managed less than 3 days). Then either chase it round (but don't go nuts) with a hammer and cold chisel (read screwdriver) or if you can get the right tool to grip it then use that with a piece of pipe to act as an extension bar. It worked for me and I haven't done any damage. If you are worried about scratches then put masking tape around the tubing, not fool proof but can help!

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