Gerald,
Favorite penetrating oils are like religion: most everyone has one,
they're all different, yet all the same. <<grin>>
If you're going to buy a air cutoff tool, buy an air cutoff tool. It'll
have the proper guard on it for use with those 3" wheels, and the cost
is about the same. Harbor Freight, et. al, have them for about $30.00 or
so and wheels are about a buck apiece. Buy 'em by the dozen, because
you'll use 'em that way.
The air cutoff tool is one of my most-used air tools, right next to the
3/8" drill. Wouldn't be without it.
<<Jim>>
"Dr. Gerald N. Johnson, electrical engineer" wrote:
>
> WD-40 penetrates rust about like the water that made the rust. Liquid
> wrench is detectably better, but the best stuff is Kroil from Kano-Labs.
> (look up their web page). Some believe that PB Blaster (sold at Walmart
> among other places) is as good as Kroil. I've not tested PB Blaster as
> hard as Kroil yet.
>
> For removing really rusted hardware on farm equipment, I've found that a
> die grinder with a 3" diameter cut off wheel can take nuts or bolts
> apart without damaging anything in the surroundings, better than a nut
> splitter (which sometimes splits nuts or sometimes splits itself), or
> blue wrench (acetylene cutting torch) in skilled hands. One can often
> buy a die grinder for under $20 and for sure under $30 that takes air to
> operate. Electric die grinders are more expensive and while the normal
> Dremel tool approximates one, its in miniature, not so handy for
> machinery and Airstream sized hardware.
>
> Gerald J.
>
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>
--
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<<lower SE Michigan, USA>>
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