Port matching

[rapieper at yahoo.com (Ron Pieper)]

FWIW, in aluminum, I found that slower speeds worked very well; kept the long burrs from whipping,
and increased controllability 1000%.  I run them as slow as I can.  Breaking burrs gets expensive!

Ron

> > For aluminum I would use PN 4295a32. It's got bigger more open teeth and doesn't clog so
> easily.
> > BTW, WD-40 on the burr helps prevent clogging.
> 
> Thanks Dan,
>   That bit looks very similar to the one I used...  Perhaps I did not have the RPM high enough,
> I cannot remember...  If push comes to shove, I may go ahead and get a set of those.  Who knows,
> perhaps they were worn out as well...
>
> 
> ---Chrome don't get you home.---
> 
> 
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