Are all 50T combination blades loud?

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Forum topic by Rick M posted 09-02-2016 06:10 PM 700 views 0 times favorited 22 replies Add to Favorites Watch
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Rick M

8647 posts in 1955 days

09-02-2016 06:10 PM

Topic tags/keywords: combination blade

This came from a discussion with guys in my local WW club. I happened to mention that my Delta combination blades were very loud and extremely unpleasant to use (even through ear muffs), not to mention they have poor cut quality. Someone else said that all combination blades are extremely loud because of the 50T design and several others agreed. But I know there are quite a few guys who use combination blades all the time. So I ask the question, is it true they are all very loud (much louder than 40T GP blades)?

So we are on the same page, a combination blade has 50 teeth and looks similar to this:


22 replies so far

View ChefHDAN's profile


859 posts in 2424 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

4576 posts in 3535 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.


View JayT's profile


5136 posts in 1786 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.

-- Pay heed all who enter: Beware of "the Phog" Rock Chalk, Jayhawk

View Fred Hargis's profile

Fred Hargis

4261 posts in 2068 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 Rick M's profile

Rick M

8647 posts in 1955 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.


View DrDirt's profile


4205 posts in 3317 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 :-)

-- 'Political correctness is fascism pretending to be manners' ~George Carlin

View HokieKen's profile


2328 posts in 713 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


3633 posts in 1342 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


5118 posts in 2388 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


416 posts in 323 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 1028 days

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

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


-- Madmark -

View DirtyMike's profile


589 posts in 477 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 Rick M's profile

Rick M

8647 posts in 1955 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.


View knotscott's profile


7504 posts in 2950 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


5926 posts in 2943 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!"

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