Tablesaw blade failure

[Carl Beckett]

What am I doing wrong?

The saw is a MM CU300. Blade is a Freud Premier Fusion. I purchased off Amazon.

The blade has seen VERY little use (and hour total run time??). I cut some cherry. Some white oak. All relatively small pieces (1.5in thick max)

Today I noticed 4 teeth have went missing. 4. At different points around the circumference.

Have one tooth come off on a blade years ago, but this is severe and this blade is taken out of service.

What am I doing wrong? What causes a tooth to come off?

Seems pretty unusual that 4 have gone missing, and at different positions around the dia seems not due to hitting something.

Not a cheap blade. Would return it if thats an option but wouldnt know where to send.

The main thing is to ensure I am not doing anything crazy that will repeat on the next blade. Which is....uggh... didnt want to spend $$ on another blade.

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[Jim Morgan]

What do the cut surfaces look like? Any embedded metal?

[John Kananis]

Looks to me like you definitely hit something. The tooth in the second pic for instance, it took a chunk of the "landing pad" with it, it didn't just come off the weld.

[Edward Weber]

I would return it,
You can usually find an Amazon drop off location or get an RMA.
It looks as if the carbide broke in a couple of them, it could have just been a bad batch.
I would also send the photos and info to Freud,
I would say this is a rare occurrence, I've been using Freud blades exclusively for about 20 years, and I've never lost a tooth. I would definitely check what you've cut for embedded materials as James mentioned

[Tom M King]

Looks like it found a nail.

[Carl Beckett]

Am pretty confident I didnt hit metal. Maybe a knot (maybe, but even there nothing major). Definitely no metal in the wood given the projects I have done with it (very little use makes this easy to confirm) - the latest project being some cherry bar stools.

Can not remember binding.

As you say, does look like carbide failure more than a failed braze. Which would suggest hitting something hard. I might have expected adjacent tooth failure if hitting something but it might depend on which tooth was 'high'.

[Rick Potter]

No expert here, but logically speaking, it seems that if you hit a nail or whatever the damaged teeth should be contiguous. Or am I wrong?

[Mel Fulks]

I’m joinin’ the posse ! They gonna haftuh make it right !

We don’t like bad brazin’ and might have to do some reaprazen on their teeth!

[Tom M King]

I've hit enough to say that there is no single way that teeth will suffer. I keep some Irwin blades for cutting questionable stuff. Often you can't tell by the outside, but you can always tell on a cut face.

[John Kananis]

Both top and bottom photos have damage on consecutive teeth. Can't see all the adjacent teeth in the other pics.

[Mel Fulks]

I bought a router bit from them years ago. “ One flute flew over the uncool mess”…. They sent out a good one quickly.

[Maurice Mcmurry]

Sure looks like contact with something other than wood to me too. Common nails usually do not do that much damage. Drywall screws are good at taking a tooth off. Some of the steel disc is shaved off too. I guess that could have been done by the dislodged carbide? Nice images by the way. Sorry about your blade.

[Dave Sabo]

I've chipped teeth on knots before. It was 200+ yr. old pitch pine , so they were like iron. And it's not unusual for multiple teeth to get lost - whether via faulty brazing -or- striking something harder than the wood.

Your last pic leads me to believe you hit something too. Bad brazing would not have caused the tooth to shatter like shown.

[Mark Wooden]

It could be one tooth cracked off and the others hit it
Knots do sometimes break teeth, especially the thin kerf blades

[Larry Frank]

I have that blade and have not had that problem. One tooth looks like a failure with the braze. I can not tell with the others. I would contact Freud and ask them to analyze the failures. Because it is a high ATB the teeth are somewhat fragile as they are not well supported at the tip

I do not use it on thick cuts because it has low side clearance. I use a glue line rip for thicker material