What tool for this bottom bracket?

If you mean crank extractor, yes you can, just unscrew it a bit further.

If you mean bb tool, a big adjustable spanner should fit both sides or there's a specific tool for at least one side - Park HCW4 for instance.

I did mean crank extractor - I have one of these Ice Tools with a silly bit at the end of them.
I'll take it off and see how I go, I think i'm not going to have enough 'thread' that makes any sense.
Pictures will come too!

Now all sorted thanks to mechanical_vandal - I unscrewed to top bit of my crank extractor and that did the trick.