Just on the off chance has anyone come across a source of these ?
It's fitted with 125mm chucks which are on a back plate to bring the fitting down to what I think is DIN 100mm chuck size but I suspect these will have been made by the chuck manufacturers – Bison.
They are a light interference fit on the register which I can do but having a number of other things to do I'd rather buy if I can – depending on price.
John
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