anybody have this size tap?

[cdenzler@sierra.com (Chris Denzler)]

I have been poking around, looking for a tap for the holes that the rotoflex
bolts thread into on my GT6+.  Well, it is 13mm 1.25 pitch and doesn't seem
to reside on any shelf I have found. 
   I could get one made, but for that kind of money I will make the bolts fit
with a bigger wrench.  (Actually the threads aren't all that bad, but I'd
like to clean them up)

                   ??????????
                               - Chris