My Uncle just moved and gave me a bunch of tools that sat in a damp storage shead. Letting them soak in Kerosen overnight and then hitting them with one of those Scotch pads work well for me. Sorry about you grandfather.
A technique I've used many times in both restoration of tools, and car parts, is a wire brush on a small hand-held grinder. This takes a bit of practice so you don't eat skin from your hand, but a tool can be cleaned up shiny and bright in seconds or minutes. Use a vice if necessary for small stuff, and definitely wear eye protection. A light touch is usually all that's needed, and will help keep the part in your hand, and not flying away. Then a light coat of a good oil will keep it from re-rusting. Car parts get a coat of "rust-killer" before re-painting. I have some tools from my wife's grandfather that are from the 20's and 30's, and they still work like new because I took the time to clean them up. Every time I use them I have a special connection to that old man who I loved more than my own grandfather.
so very sorry to hear about your grandfather.
I've found most petroleum products / cleaners to assist well in cleaning rust. Have Scotch pad and WD-40, will travel! I had to do this to my own tools, recently, when I'd been working on the car and got caught in a sudden rain storm. All of my tools developed rust from that one deluge, and I had to go through and clean everything. I used WD along with a green scrubby pad and a sanding sponge (used for light body surface work).
Condolences to you, my friend,
Sorry to hear about your grandfather, but i was recently looking through an Eastwood magazine, and they have this stuff called Eastwood rust dissolver, and it says that it removes rust without removing any metal, or damaging of weakening the metal, the part # is 16037 for a quart, and 16038 for a gallon, and the best part is you can just soak the parts in it, but i don't know, i've never used it.
Try good old fashion WD40.
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