> So, I need to countersink the 3 bolt heads into the adapter to
> mount it on the
> manifold. I COULD drill out a hole, then drill a much wider spot to
> countersink the head. However a drill would leave a slightly
> conical bottom.
> Is there something to use to make a flat bottom hole in the adapter?
The tool you want is called a counterbore, should be available from any
machinists supply house
http://www.mcmaster.com/
and maybe
http://www.mcmaster.com/
(but their site seems to be down at the moment and I'm too lazy to go find
the paper catalog)
Seem to be a pretty common surplus item too, I've got a complete set I
picked out at the local "Aero surplus" house. EBay would probably be
another place to look.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2598375859
Randall
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