Unimat needing a little repair

[Dr Stan]

(06-20-2016, 03:48 AM)Pete O Wrote: Nothing's ever easy is it, the spindle appears to be a M12x1mm thread, non-standard and not amongst my tap & die collection. I'm reluctant to go out and buy tools just to do this repair for a workmate, would it be kosher to ask him to spring for the tap & die?

While on the small side what about setting it up in your lathe and picking up the thread so you could repair it just like single pointing.  You could modify a tap by grinding away all the teeth but one for the internal threading.