So I have since learnt from my black book of usual suspects that the belling tool has a piece of 1/4" thick or so rubber on the end that physically expands as you hammer the tool to expand the copper at the end. I reckon now that I understand it I can fashion something off note. Regarding pictures, would you be providing pictures from the manual or something better because i already have a a good clear copy of a manual picture of the tools which I now understand better now that I get the rubber piece on the end.
Cheers
Nobby