[R-390] What is exact Bristol wrench size to use for the Collins R30 knob set screws/collars on gear-train?

[Tim Shoppa]

> what the exact size is for Bristol wrench on knobs/collars on gear train

#8 is evidently the "old" designation.  Modern catalogs list this size
as "0.096-6".

Common sources are Xcelite, and McMaster-Carr (http://www.mcmaster.com/).

I think a smaller size is used for some PTO adjustments, haven't gone
there yet.

Tim.