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wood saw blade question


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#1 Ryan313 OFFLINE  

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Posted February 04, 2012 - 09:45 PM

Every wood saw blade I have seen, has those little groves. There are ususually 4bof them spea dout equally around the blade. What are those for?

#2 MH81 ONLINE  

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Posted February 04, 2012 - 10:16 PM

The anti-singing cut outs? If you don't have them, the blade noise is much louder. Really good blades have a squiggle cut in them & filled with sound dampening epoxy.

#3 Ryan313 OFFLINE  

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Posted February 04, 2012 - 10:22 PM

That makes sense, they are just little straight cuts between two teeth and at the end of the line is a small circle, it looks like a coldasack. (That's spelt way wrong.)

#4 MH81 ONLINE  

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Posted February 04, 2012 - 11:06 PM

Yep, that's them. Ask an older relative how much quieter the new blades are.
If they used the old ones a lot... They will reply "What did you say?"

#5 Ryan313 OFFLINE  

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Posted February 04, 2012 - 11:28 PM

Yep, that's them. Ask an older relative how much quieter the new blades are.
If they used the old ones a lot... They will reply "What did you say?"


Lol, will do. Thanks.

#6 Toolpartzman OFFLINE  

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Posted February 06, 2012 - 08:42 AM

Every wood saw blade I have seen, has those little groves. There are ususually 4bof them spea dout equally around the blade. What are those for?

In addition to noise reduction, many aid in to reduce heat. I always use Freud and many of their reliefs are moon-shaped.

#7 grnspot110 ONLINE  

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Posted February 06, 2012 - 11:31 AM

I always figured they were to allow for expansion when the blade heats up, thus less chance of wobble!

#8 Ryan313 OFFLINE  

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Posted February 06, 2012 - 07:14 PM

Who's to say they aren't for all those things? They are all valid points.

#9 olcowhand ONLINE  

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Posted February 06, 2012 - 07:18 PM

Look for more holes as time goes by.......... less metal, lower manufacturing costs .... higher price!

#10 Ryan313 OFFLINE  

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Posted February 06, 2012 - 07:35 PM

Look for more holes as time goes by.......... less metal, lower manufacturing costs .... higher price!


The cut outs would save next to no material. They aren't very big.

#11 olcowhand ONLINE  

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Posted February 06, 2012 - 07:43 PM

They aren't very big.


Neither are Jumbo Moon Pies these days.......but higher priced! A few pennies shaved off anything made in mass quantities adds up, and believe me, manufacturers know this all too well. But the blade cutouts are there for good reason.

#12 MH81 ONLINE  

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Posted February 06, 2012 - 07:46 PM

Look for more holes as time goes by.......... less metal, lower manufacturing costs .... higher price!


Daniel, I didn't think about that. If they save a half cent of metal per blade and make a million of them for worldwide distribution, that'd be 5 grand in savings. Doesn't sound like much to a big Corp, but anytime they can save, they will. Smart business.

#13 Toolpartzman OFFLINE  

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Posted February 07, 2012 - 05:07 AM

Daniel, I didn't think about that. If they save a half cent of metal per blade and make a million of them for worldwide distribution, that'd be 5 grand in savings. Doesn't sound like much to a big Corp, but anytime they can save, they will. Smart business.

I think was American Airlines who announced that they saved $40,000 per year by reducing 1st class drinks by 1 Olive.:bounce:

#14 Toolpartzman OFFLINE  

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Posted February 07, 2012 - 05:13 AM

Who's to say they aren't for all those things? They are all valid points.


They serve several functions. Heat=Noise= balance=run-out (wobble)=burning the wood in the cut.=sloppy cut (i.e. a wider cut kerf than measured at the blade.) = shorter blade life.

#15 Toolpartzman OFFLINE  

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Posted February 07, 2012 - 05:22 AM

A side note. When I was doing serious woodworking full time, I was paying $80 for a 90-tooth,carbide tooth 10" blade. That seems expensive. But those blades would out last 5 $40 blades I never liked paying the $80, but I realized that each time I did, I just saved myself $120!!!!:blush2:




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