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Tell me about dry/cold cut metal saw blades

Zeke

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Horsetrading around a bit I ended up with a Ryobi miter saw that I don't need as it's no. 4 now on the shelf. I can't seem to get rid of it for half of new so I guess I'll try and repurpose it. It's a 10" model that spins at 5000 RPM.

So, I see a metal cutting blade for faster saws made by Sword Cutting Tools or SCT. They state, "Not for cutting aluminium or Slow RPM Saws like Dry Cut & Cold Saws." And they have a 7" model which I could use with a riser block. The TPI feed would be essentially less given the same downward pressure.

I could also use a typical low rake angle 60 T blade for AL on the same saw.

So the question is, is this nearly as good as buying a dedicated slow speed dry cut saw? Let's not get into a discussion about 12" and 14" saws. I have a 14" chop saw that I have used many times with an abrasive metal cutting blade. And yes, it wanders. So a SCT 14" might be in the cards if it works as advertised.

One last thing in the favor of a wood cutting saw used for metals: compound miters. I don't think the Evolution does that.

Please, if you don't own a regular wood cutting miter saw used for metals, let the folks who actually know reply and learn for yourself.

TIA.
 
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dnschmidt

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In the old days they made metal cutting saw blades for high speed table saws and circular saws that had no teeth just vents. They basically cut steel by friction. I use to use one of these all the time to cut golf shafts. I would not try a carbide tipped saw with a high rpm saw. For that I use my Porter-Cable dry cut saw.
 

Thumper68

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I have an old miter saw that I used to use with a 60 tooth 10 inch blade for cutting al. it worked well but did throw hot chips around.

I have also used the same blade in my table saw to rip AL.

Don't know if that helps.
 

tarbellb

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Also keep in mind that most metal cutting chop saws use a vise+fence combo, where wood saws only use a fence.

Personally I would not attempt to many metal cuts without a vise.

But... interested to hear whats out there.
 
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Z

Zeke

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My Ryobi has the vise/clamp that the cut off saws have.

Still interested in this: Sword Cutting Tools or SCT. They state, "Not for cutting aluminium or Slow RPM Saws like Dry Cut & Cold Saws."
 
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Thumper68

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My Ryobi has the vise/clamp that the cut off saws have.

Still interested in this: Sword Cutting Tools or SCT. They state, "Not for cutting aluminium or Slow RPM Saws like Dry Cut & Cold Saws."

can you post a link?
 

davewo

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I don't use a miter saw for cutting metal, but I can tell you that you're out of the rpm range and torque needed to cut bar stock and achieve a decent blade life. I'm not familiar with Sword Cutting Tools (I couldn't find their website?), but as a frequent user of two dry-cut saws, I wouldn't recommend anything lesser to cut metal.

I have an Evolution at home and a Morse at work. They both spin at about 1400 rpm and have geared-down arbor assemblies, so they are torque-ie. I'm in a satellite machine shop and bought the Morse to cut stainless steel bar stock in-lue of making room for a horizontal band saw. I'm happy with both purchases.
 

davewo

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My Ryobi has the vise/clamp that the cut off saws have.

Still interested in this: Sword Cutting Tools or SCT. They state, "Not for cutting aluminium or Slow RPM Saws like Dry Cut & Cold Saws."

I'm guessing they don't have the proper tooth geometry and/or coating for aluminum and they are not efficient spinning at only 1400 rpm.
 

davewo

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I've never used anything like that before, but it looks like a good alternative to abrasive discs.
 
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