Riving Knife Vibration

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Forum topic by LoyalAppleGeek posted 03-29-2016 03:57 PM 617 views 0 times favorited 4 replies Add to Favorites Watch
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160 posts in 859 days

03-29-2016 03:57 PM

Topic tags/keywords: blade tablesaw question riving knife vibration vibrating kobalt

Hi Everyone!

I have a Kobalt 15-Amp Table Saw that I finished setting up yesterday. So far I love it, it came with riving knive, kickback pawls, blade guard, sliding bed extension, self squaring rip fence, and of course, a push stick in my favorite color (blue) and a 28 tooth rip blade I’ll replace with a Diablo when it wares out. All accessories store on board the saw. My shop is small, and I work outside sometimes for outdoor projects, so the fold-up into a dolly function is a life saver. I love this thing.

I had an easy to fix issue where the rip fence scale indicator had to modified to adjust enough, no big deal. But this next issue I can’t find anywhere online. After cutting a non-through cut, the riving knife has started vibrating, a lot. Not a loose jiggle, but a high frequency, low hum vibrate. I can’t find a thing wrong with it, any ideas?


4 replies so far

View Woodknack's profile


11479 posts in 2344 days

#1 posted 03-29-2016 04:27 PM

Cheap saw blades sometimes whine loudly, that vibration could be transferring to the riving knife. Try it without the blade.

-- Rick M,

View LoyalAppleGeek's profile


160 posts in 859 days

#2 posted 03-29-2016 04:35 PM

Bingo! Your right, it’s coming from the blade. Hopefully title stop when I pick up a new one. Thanks!

View SirIrb's profile


1239 posts in 1195 days

#3 posted 03-29-2016 05:57 PM

Try it without the knife.
Put the blade back on.


Leave it that way.

Youll thank me later.

-- Don't blame me, I voted for no one.

View LoyalAppleGeek's profile


160 posts in 859 days

#4 posted 03-29-2016 07:28 PM

I remove the riving knife for some of my jigs, but for most cuts I leave it on, along with the kickback pawls and blade guard.

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