Professional Porting Tools ?
Makita makes a nice one :
http://www.granitecitytool.com/stone...3&catnum=0
I use a Craftsman myself.I paid $89.95 for it at the local Sears Hardware.
about 10 years now, and it's pretty tough. I've
used it a fair bit. It is heavy, and it gets hot
in the nose bearing under prolonged use. Also, the
long snout seems prone to squeal/wobble under some
side-pressure ranges (light, OK; heavy, OK; medium
it squeals & bounces like a sumbitch). I have to
wear the welding gloves if I run it for more than
maybe 10 minutes. But it keeps on going, probably
the longest-lasting Craftsman electric tool I have
owned and the only one I'm still on my first of.
But if you don't have a >10HP compressor an air
grinder is not going to be usable full-time, they
are little air hogs. On the other hand a Fine
Imported Die Grinder can be had for under 20
bucks at the flea market or Harbor Freight, and
at that price (less than a good burr, on which
you should not skimp) it's basically disposable
but unlikely to need to be.


