BOSCH OSL114C-3 3-Pack 1-1/4 in. Starlock Oscillating Multi Tool Metal & More Carbide Extreme Plunge Cut Blades for Cutting Iron Bar, Metal, Wood with Nails, Drywall and Tile

Maybe my expectations are too high but I was surprised that the teeth wore flat on these when cutting a screw.

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Its a tool that works

Simply amazing! I had doubts that these blades would work as well as Bosch claims. I do not have doubts any more! I was cutting through 3/4" sub floor with thinset mortar and the remains of ceramic tiles on it. All the other blades I used ( bi-metal) got torn up almost immediately like cut six inches and the teeth were worn / broken off. I used one of these carbide Bosch blades and finished the rest of the job and the blade teeth look just as good as when I started. I saw afterwards I had sawed through nails and screws and even some ceramic tile, but it cut so well I never even noticed. There were two nails that got cut longways (as in the nails were split top to bottom so 3/4" of half a nail was left) which was hilarious. In this tough application, these blades are lasting way more than 30X the life a standard bi-metal blade. Cutting speed is about the same as the bi-metal blades (when they are new / sharp) but the cutting speed does not slow down because the teeth never get dull. A little bit expensive, but well worth the money.

Good quality Bosch blades at the length I was looking for.