This lovely piece had suffered from neglect and improper storage:

Craftsman 9AC3558 "Master Grip" hacksaw - as found - 06/20/26
The "collector appeal" on this unit is in that fancy yellow handle, so I wanted to be sure to not damage it in any way.
Removing the scales was a challenge, as both screws were rusted tight. Soaking in Kroil overnight got one loose enough to remove, but the other one just wanted to spin around and around. After several attempts, I laid that smooth convex-head button headed screw on a rubber "jar lid remover" sheet - just a thin sheet of rubber with a grippy surface - and managed to get that second one out - not, of course, without stupidly buggering up the slot on the head of the screw.
With the scales removed, I dropped the frame into the Evaporust overnight and let it soak.
The piece had been subject to wanton neglect and was tossed around in somebody's box, causing that pretty yellow handle to get all scratched up and faded.
Meguiar's introduced a line of "plastic" products in the early 1980s. There were about 7 different SKU's. We brought in two of them: a "cleaner" and a "polish". I still have a bottle of the cleaner. Not sure where the polish went. The product was made just for this sort of thing. Don't know if they still make it:

Craftsman 9AC3558 "Master Grip" hacksaw scales after cleaning with Meguiar's Plastic Cleaner
This was close, but not what I was hoping for, so we went old school:

Craftsman 9AC3558 "Master Grip" hacksaw scales after buffing with toothpaste
Not sure if any of you fabricated the clear plexiglas "Letter Opener" in junior high shop class. (My class didn't make them, but others did.)
The boys would sit in class with a rag and a tube of "Crest" and buff those things until they were crystal clear.
It has to be one of the "old" brands that still contain a tiny bit of chalk powder - just use a piece of terry cloth and go at it.

1939 Craftsman catalog pp 27 - hacksaws
You'll note in the catalog description that this unit was produced with a
polished nickel-plated frame. That being the case, the last thing we'd want to do would be to scratch up that nice finish with steel wool or - God forbid - putting it on the dreaded
wheel, as was the case with this unfortunate victim of abuse:

Craftsman 9AC3558 hacksaw (ebay 277962753883)

Craftsman 9AC3558 hacksaw (ebay 277962753883)
Aside from the crazy asking price (of $100.00), I would posit the reason this piece still hasn't sold - notwithstanding its rarity - is that the seller has compromised its intrinsic value by putting it on a wire wheel - something I consider "last resort" stuff (although I've found myself doing quite a bit of it lately with horribly rusted items.)
But I digress....
Still chanting my mantras of "Do No Harm" and "It's only original once", it was time to pull the frame out of the pickle pot and see what it looked like. There were still some splotchy areas and some tiny dark spots here and there, so I dug out Mom's favorite:

Craftsman 9AC3558 "Master Grip" hacksaw - Wright's Silver Cream for the win!
Then it was time to put it all back together - just before the sun went down:

Craftsman 9AC3558 "Master Grip" hacksaw ready for reassembly

Craftsman 9AC3558 "Master Grip" hacksaw all back together with a snazzy new blade!
