I’ve got my hands on about 30 VERY old and rare chisels for the plumbing trade known as leading and caulking irons. They are basically cold chisels with elaborately shaped cutting edges. I know this is a woodworking forum, but I’m sure your expertise will follow through to this situation. They are heavily rusted and snotty. I’ve got them soaking in cutting oil right know, and plan on machine scraping and then buffing them. Once all the rust is off, I’m at a loss. I don’t know if there is some kind of preservative I can apply to the chisels, if paint is appropriate, or what kind of either to use. Are they really just hunks of steel? Should I just apply gun oil and leave them alone? Any opinions would be wonderfully welcome.
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Replies
I'd be careful about machine scraping them- if they get overheated, the temper may be affected. Do it at low speed and cool them in a water bath frequently. I wouldn't paint them- I'd oil them and keep them in a box with some dessicant.
Glaucon
I'd love to see some photos of em. Plumbers caulking iron are an entirely different device than a woodworking chisel. The hardest thing they would have come up against is lead. And I may be naive, but in quite a few years of oldtool experience, I cannot recall any reference or sighting of "elaborate patterns", not to say that they might not exist.
I've seen a reasonable intact plumbers "roll of tools" from way back, and there wasn't any decorative or elaborate pieces in it at all.
Anyway, from my naive practical perspective, a plumbers caulking iron ain't likely to translate to a WWing chisel , but maybe you just wanna ressurect them as plumbers irons.
Still, I'd luv to see a photo of em.
If yer curious, there are leather working tools which take the rough form of a chisel, but have different , primarily zig-zag patterns on them that were used in that trade. Other patterns include semi-circles of smaller semicircles.
Manytimes I have heard the adage of if you cannot identify it as a woodworking tool, it is likely a leatherworking tool. Maybe you've heard this from others as well. Might not hurt to look in that direction to ID em before you try to ressurect em. Might save some heartbreak.
Eric
in Calgary
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