Hi all,
I have used this product,"Evapo-Rust" for rust removal and it worked well for me.
The only caution is that at the air/solution interface line ( where the solution ends and the air starts) will cause an fine etch line
so the answer to that is to submerge the blade totally if possible or keep the solution moving by wiping the solution over the blade.
This is the link to a source for the product, cheapest one that I found, and there are others as well.
http://www.theruststore.com/
Read and follow the instructions on the container.
The fine etch line it very light and easy to remove but it is better not to have it there in the first place.
If anyone does use this product get back with us and let us know how you made out. It saved me a lot of work and no I do not have stock in the company,
Gene