Thanks guys, thought I might get away with not needing one if I wasn't fitting new disks or pads. Would need a rewind tool anyway in the long run I guess.
I've cleaned the front calipers and used Bostik Pure Nickel on the back of the pads, need to do the rears now. After seeing how much dirt had built up I think it would be good practise to maintain them in this way every 6 months or so.
Very tasty sig pic, Ron 
Cheers RedRobin, photos came out well that day.
Ron.
