Tool Restores #1: Derusting and Restoring a Skil HD-77 Saw

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Blog entry by TrBlu posted 06-16-2014 04:49 AM 2186 reads 0 times favorited 4 comments Add to Favorites Watch
no previous part Part 1 of Tool Restores series Part 2: Sharing One of My Tool Cleaning Hacks »

From this:

To this:

The entire post was a little picture heavy, so here is a link to my blog post:

Thanks for letting me share.

-- The more I work with wood the more I recognize only God can make something as beautiful as a tree. I hope my humble attempts at this craft do justice by His masterpiece. -- Tim

4 comments so far

View Ocelot's profile


2975 posts in 3695 days

#1 posted 06-16-2014 01:36 PM

How does the electrolosys compare to using a product like Evaporust? I have recently used Evaporust and was really pleased with the results. A nice feature is that it’s reusable, so I just pour it back in a jug and wait for the next time. Electrolosis sounds cheaper, however.

The black stuff, as I understand, is black iron oxide Fe3O4 – the same oxide (also called magnetite) which is used on recording tape. It’s not a bad thing to have on a piece of steel in general.


-- I intended to be a woodworker, but turned into a tool and lumber collector.

View Buckethead's profile


3196 posts in 2926 days

#2 posted 06-16-2014 02:03 PM

Those are some nice saws. I see them on CL from time to time, but have yet to see one asking a reasonable enough price for me to make the effort.

Really sweet job on the rehab! The electrolysis method is interesting. Mad scientist action. Me likey.

-- Support woodworking hand models. Buy me a sawstop.

View TrBlu's profile


386 posts in 3683 days

#3 posted 06-16-2014 02:19 PM

Paul: I have never used Evaporust. If you’re pleased with the results, that’s all that counts. What I like about the electrolysis is I can start it and leave it for a while. You are correct on the iron oxide. I need to make that correction in my blog. (Thanks!)

Buckethead: I found this saw on eBay. I think the rust in the pictures scared people off. The listing including free shipping, so I posted a bid for the maximum total I was willing to pay. Turned out I was the only bidder, so I made out a lot better than I expected.

Electrolysis is fairly cheap, especially when you use recycled parts to make the kit. The ongoing costs are four gallons (or less for smaller parts) of water and 1.5 tablespoon of Arm & Hammer washing soda per gallon. The electrolysis water can be reused until red residue is floating on top. I never reuse the water, unless I am doing a lot of parts at the same time. The charger and copper wire store in the bucket between uses.

-- The more I work with wood the more I recognize only God can make something as beautiful as a tree. I hope my humble attempts at this craft do justice by His masterpiece. -- Tim

View TheFridge's profile


10863 posts in 2543 days

#4 posted 06-16-2014 02:34 PM

Good to hear electrolysis works as advertised.

Nice saw, my father gave me a skill 77 and it is a beast. It’s the go to nowadays for sheet goods. Or anything really.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

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