To test the cutting speed and durability, we made a sandwich of 2X PT, 3/8-inch MDF, asphalt shingles, and 1/4-inch plywood. That’s roughly an 8% advantage over Irwin and 11% over DeWalt. In the end, DeWalt made it in 9.70 seconds, Irwin in 9.33 seconds, and Diablo in 8.61 seconds. Clean Woodįor our initial testing, we had each blade make several simple 48-inch cross cuts in 1-1/2 inches of OSB to get an average cut speed. We brought in a couple of popular competitors with the Irwin WeldTec and DeWalt 2X Demo Blade for comparison. Durability usually gets the nod over speed if there’s a choice. Most Pros consider two major points when it comes to circular saw blade performance – durability and cutting speed. It’s entirely possible that what we couldn’t feel with our hands still had an effect on the results. But even small vibrations can affect your cutting speed, performance, and efficiency. Again, none of the other blades we tested did, either. We didn’t have any vibration issues that transferred to the saw with any of our blades. The Diablo Demo Demon with Tracking Point Amped features an enhancement over Diablo’s previous designs. But when you’re cutting through nails, shingles, bolts, and other tough material, the size and shape of those cuts have to carry a more careful design. These help to reduce vibration and you can get away with more when you’re only cutting clean wood. They vary from brand to brand and for different applications. You’ll notice laser cuts in the side of most any circular saw blade these days. Of course, none of the other blades we used did, either. While we don’t have a way to measure that, we didn’t lose any teeth on any of the cuts we performed.
Lock-Tooth Designĭiablo claims to have the strongest connection between carbide tooth and blade body. Sure enough, Diablo’s teeth retained their grind longer than the other blades in our test. When making some pretty abusive demo cuts, we examined each blade once it lost its initial cutting speed. There’s a real benefit here that we found during testing.
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