Well thanks Mike, you learn something every day, I'm an engineer as well and
never even heard of them.l
I looked at McMaster Carr and found them OK.
Next step is to find size and whether 4 or 6 flutes.


--
Roy
N5804F - PA28-181

"Mike Rapoport" wrote in message
ink.net...
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