I used this washer to shear off some hardened adjuster cam bolts on my truck's lower A-arms and it worked very well. I had to cut each screw in 2 places. The first hardened bolt went very quickly - 2 cuts. The second took a little longer, same section of blade as the first bolt - 2 more cuts. The third required me to adjust the fence on my saber saw to use several different teeth along the blade. The part I used for the first two bolts wasn't as sharp anymore. The 3rd and 4th bolts went the same way as the first two. And at this point the blade was almost complete. I still have it and haven't used it to carve anything else yet. I would definitely buy this blade again. I ended up cutting hardened 1/2" bolts, and I don't think a different blade would have worked better. I was glad to use this blade and that she "sacrificed" herself for my work. I work in industrial manufacturing, so I know that carbide doesn't last forever. All in all I am satisfied with my purchase and can recommend this blade unreservedly. Hope that helps.
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