I'm aware that using a miter saw for cutting metal isn't ideal, and a cold saw with lower RPMs is a better option. However, I only cut metal occasionally, so purchasing a cold saw doesn't seem practical. I recently used a Diablo steel demon blade and managed about 20 cuts before it dulled. I'm looking to make another 30-40 cuts and was wondering if switching to a blade like this one (link included) would yield better results.
3 Answers
If you really want to use your miter saw, grab a specific metal cutting blade designed for that purpose. Just double-check the RPM ratings, since the miter saw spins pretty fast. Also, consider getting a hacksaw or a portable band saw if you just need to do a few cuts, as they can make the job easier without wrecking your miter saw blades.
Honestly, cutting steel on a miter saw can be tricky, and if you've used up a Diablo blade, it might be time to rethink your approach. An angle grinder can be a better alternative and usually costs less in the long run than new blades for a miter saw. Just a thought!
I’d recommend sticking with an angle grinder or maybe renting a metal-cutting tool if you don’t need it often. You can burn through steel quickly with a cut-off blade, but you'll create a lot of sparks, so be cautious! You might find using a grinding wheel after cutting helps get a nicer finish too.

Yeah, don't go for an abrasive blade on a miter saw; it can cause issues. Just be sure whatever blade you choose can handle metal cutting. A hacksaw is a straightforward solution if you're only doing it occasionally!