All Replies on Are all 50T combination blades loud?

  • Advertise with us
View Woodknack's profile

Are all 50T combination blades loud?

by Woodknack
posted 09-02-2016 06:10 PM

22 replies so far

View ChefHDAN's profile


1391 posts in 3234 days

#1 posted 09-02-2016 06:14 PM

I run a freud diablo 50T and don’t find it any louder than a 24T rip blade. When was the last time you cleaned & sharpened? that can make a difference if the noise is during the cut

-- I've decided 1 mistake is really 2 opportunities to learn.. learn how to fix it... and learn how to not repeat it

View Bill White's profile

Bill White

5205 posts in 4345 days

#2 posted 09-02-2016 06:21 PM

Clean blades for sure, and the zero clearance insert can add to sound.
I use both Onsrud and Infinity combo blades, and find them no more loud than any other QUALITY blade.

-- [email protected]

View JayT's profile


6198 posts in 2596 days

#3 posted 09-02-2016 06:22 PM

I used a Diablo 50T, as well, and didn’t notice it being any louder than other blades. I wonder if older combo blades that don’t have the relief cuts in the center section would develop some weird harmonics due to the tooth pattern and newer ones that account for the noise with the cuts don’t have that issue.

-- - In theory, there is no difference between theory and practice. In practice, there is.

View Fred Hargis's profile

Fred Hargis

5535 posts in 2878 days

#4 posted 09-02-2016 06:42 PM

If you look at some of the more expensive blades, you see little scrolly cut marks around the perimeter of the blade. Those cuts are designed to reduce some of the “singing” the blades do. I think they help tremendously, though I haven’t put a sound meter to them to prove it. The saw is so loud anyway, I’m always wearing my hearing protection.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Woodknack's profile


12795 posts in 2765 days

#5 posted 09-02-2016 06:51 PM

The Delta blades are clean, they are just old blades from the 90’s and were always very loud. I never used them because of it.

-- Rick M,

View DrDirt's profile


4555 posts in 4127 days

#6 posted 09-02-2016 06:52 PM

Clean blades for sure, and the zero clearance insert can add to sound.

- Bill White

I always felt like the zero clearance insert was quieter… but I never really did a test…hmmmm gears are turning now :-)

-- “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

View HokieKen's profile


9480 posts in 1523 days

#7 posted 09-02-2016 06:53 PM

I use a Freud 50T ATB combination blade and haven’t ever noticed it being any louder than my other blades. I get “decent” cuts with it but not as good as my dedicated cross-cut and rip blades. I mostly use it for plywood or rough cutting wood to size before milling.

Next time I put it on for something, I”ll make sure I pay attention to the difference in sound.

-- Kenny, SW VA, Go Hokies!!!

View mahdee's profile


4290 posts in 2152 days

#8 posted 09-02-2016 07:38 PM

I can’t say I’ve ever notice the difference much although the 50T may have a higher pitch sound.


View pintodeluxe's profile


5933 posts in 3198 days

#9 posted 09-02-2016 08:09 PM

Most blade makers take harmonics into account. My combination blades and 40 tooth general purpose blades (all Freud) have about the same noise level, which I consider very low.

I prefer the thin kerf 40 tooth blades due to the better cut quality, but the sound is about the same.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View Kirk650's profile


642 posts in 1133 days

#10 posted 09-03-2016 01:05 AM

A few years ago there was a very interesting article in FW that compared a wide assortment of table saw blades. They measured noise, among a long list of other things. Some were definitely noisier than others. Seems like the Forrest WW2 and a Freud blade were the top overall picks.

View MadMark's profile


979 posts in 1837 days

#11 posted 09-03-2016 01:19 AM

Cheap blades roar, good blades sing. Freud makes quiet blades with harmonic control slits.


-- Madmark - [email protected]

View DirtyMike's profile


637 posts in 1286 days

#12 posted 09-03-2016 01:37 AM

Thin kerf 50t freud blade user here. Honestly my made in Taiwan contractor saw is so loud i wouldn’t be able to tell.
If there is any difference in decibels it has to be minimal.

View Woodknack's profile


12795 posts in 2765 days

#13 posted 09-03-2016 02:35 AM

Cheap blades roar
- MadMark

My 50T blades sound like a cat on fire trying to climb a glass wall.

-- Rick M,

View knotscott's profile


8288 posts in 3760 days

#14 posted 09-03-2016 03:11 AM

I’ve used several of the 50T ATB/R combo blades from Infinity, Freud, DeWalt, Tenryu, Onsrud, and Leitz, and never noticed them being louder than most other blades. The cut is also generally pretty good. I suspect you’ve got a blade with a problem.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View oldnovice's profile


7482 posts in 3752 days

#15 posted 09-03-2016 03:13 AM

I have an old 24 tooth Oldham blade and it doesn’t make a sound until the wood hits it!
Quality of cut is good enough for carcass or construction work.

-- "I never met a board I didn't like!"

View Woodknack's profile


12795 posts in 2765 days

#16 posted 09-03-2016 04:10 AM

Yeah I know it’s the blade, lol, but I was curious as those are the only 50T blades I’ve used. What brought it up was one of the guys recommended a Delta 7657, said it was the best bang for the buck in saw blades and several others agreed. (Apparently it’s made by Dewalt). Then I mentioned how my Delta blades are very loud and they commented that all 50T blades sound like that. So question is resolved it sounds. My Freud 40T has some years on it and is due for a sharpening, the cut quality isn’t what it used to be. I was thinking of getting an inexpensive back up blade while the other is out.

-- Rick M,

View knotscott's profile


8288 posts in 3760 days

#17 posted 09-03-2016 10:37 AM

That Delta 35-7657 is a heck of a bang for the buck. Made in the USA the last I knew. Large C4 carbide teeth, full kerf, traditional ATB grind, well made, and good performance for ~ $30 to your door is tough to beat.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View kiefer's profile


5655 posts in 3051 days

#18 posted 09-03-2016 10:57 PM

I suspect it’s the deep gullets that create the noise .
I use CMT’s 60 tooth industrial blade and it stays sharp for a long time and is nice and quite and is also a decent price .

-- Kiefer

View Woodknack's profile


12795 posts in 2765 days

#19 posted 09-05-2016 10:06 PM

Update to my post… I’m going to be honest and admit I made a mistake. The blades I accused of being noisy were not combination blades, they were Delta miter/radial arm saw blades. They came off Delta miter saws when I replaced them with fine tooth Dewalts. So the noisy blade was not a tablesaw blade and that’s why it was lousy.
As an addendum to that …

I went digging around and found a bunch of saw blades I had forgotten about including a Freud combo, Delta combo, and several general purpose and fine cut blades. I guess the advantage of getting older is that you can have Christmas early just by looking through your own stuff. I did some testing using a decibel meter app on my phone and found little difference in volume. In general, the thin kerf blades were quieter but only by 1-2 decibels on average. What varied most was the sound pitch (but I didn’t measure it). The combo blades were maybe a tad higher pitched when not cutting but lower pitched when cutting. The combo blades left more blade marks but I didn’t get any of the harmonic issue that I occasionally experience with my rip blade and 60T finish blade so cut quality was a wash. Interestingly the Delta combo is outperforming the Freud combo BUT, the Freud has seen more use and has been to a sharpening company at least once. In fact, I’m not sure the Freud combo has enough carbide left for another sharpening.

-- Rick M,

View HokieKen's profile


9480 posts in 1523 days

#20 posted 09-06-2016 12:12 PM

A lot of miter saw blades have negative rake. Wonder if that’s what caused the noise?

-- Kenny, SW VA, Go Hokies!!!

View Woodknack's profile


12795 posts in 2765 days

#21 posted 09-06-2016 05:20 PM

Probably. No doubt I grabbed it by accident and put it on the saw. At the time I just remember thinking these Delta blades suck and set it aside to cut up for a knife. I’m running the Delta combo now. A new 60T Freud is only $35 so I don’t think it’s worth sharpening. The last couple years I’ve been getting a harmonic in the Freud 60T and rip blades that gives me poor cut quality. Freud offered to take a look at them but it could just be the blades getting dull. If it happens with the Delta combo then I’ll know for sure it isn’t the blades.

-- Rick M,

View Roger's profile


21006 posts in 3188 days

#22 posted 09-13-2016 11:07 AM

I know when I bought my new Grizzly table saw earlier this year, the blade that comes with it seems to sing a little bit louder as well. I don’t use it very much. I prefer Freud blades myself.

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed. [email protected]

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics