It probably isn't an allen wrench. It is likely to be a spline wrench. You
can find them he

http://www.mcmaster.com/

Mike
MU-2


"Roy Page" wrote in message
ink.net...
I just can't locate the correct size of Allen wrench that fits the OBS knob
retaining screws on my KI214 & KI201 indicators.
Would a member of the group enlighten me.

Thanks,

--
Roy
N5804F - PA28-181