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combo blade on a miter saw?

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Forum topic by spamfilterman posted 07-10-2010 08:40 PM 1695 views 0 times favorited 14 replies Add to Favorites Watch
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spamfilterman

149 posts in 2485 days


07-10-2010 08:40 PM

I just got a new sliding miter saw, and I don’t think I’m too impressed with the stock blade.

Can I throw a combination blade on it?
The manual says no… it says ‘use crosscut blades only! do not use blades designed for ripping, combination blades or blades with hook angles in excess of 5 degrees.’
I know my combo blade has an angle of more than 5.

I know the simple answer is to just buy a good quality crosscut blade, but after buying this expensive saw, I don’t even want to try to explain the purchase of a new blade to my wife.


14 replies so far

View knotscott's profile

knotscott

7210 posts in 2838 days


#1 posted 07-10-2010 10:26 PM

The material will tend to self feed on that type of saw if you use a blade with a steep hook. Most combo blades have a hook of 12°-15°. It’s more dangerous but it will cut. Keep your eyes peeled for a great deal on a blade with a low to negative hook.

The blade has a huge impact on how well the saw cuts. Better to optimize that expensive saw by putting the right blade on it.

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

View Gregn's profile

Gregn

1642 posts in 2446 days


#2 posted 07-11-2010 12:11 AM

On my SCMS I use a good 100 tooth carbide blade. The cuts are smoother and there is less tea rout in the cut. This is important when doing miter cuts. On my RAS I will use a combination blade for rough cutting material and finish up my final cuts with the SCMS. As mentioned the degree of the hook makes a difference.

-- I don't make mistakes, I have great learning lessons, Greg

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jusfine

2405 posts in 2388 days


#3 posted 07-11-2010 12:33 AM

There is a reason they write those statements in the manual.

It will be less safe to run a blade with more of a hook on it, but I am sure it can be done.

Buy a Chopmaster by Forrest, I really like them!

-- Randy "You are judged as much by the questions you ask as the answers you give..."

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syenefarmer

432 posts in 2543 days


#4 posted 07-11-2010 01:05 AM

”The manual says no.”

That would pretty much tells the story right there.

View fredf's profile

fredf

495 posts in 3173 days


#5 posted 07-11-2010 01:14 AM

Would it be easier to explain how you cut your hand off than to explain why you bought a new blade??? Get the right blade and be safe!!!!!! I am cheap, but that is a no brainer!

-- Fred, Springfield, Ma

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CampD

1474 posts in 2949 days


#6 posted 07-11-2010 01:30 AM

Word of advice!!! keep the stock blade on it till you at least get used to running it correctly, you know getting in the habit of pushing the saw thru the cut.
Problem is, these saws really grab the wood as their cutting thru and if your not carefull can send the piece being cut flying. On regular cuts its not much of a problem, but when you use the slide motion, be carefull till you know your saw, then maybe you will understand what the manual is pointing out.
my 2c

-- Doug...

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spamfilterman

149 posts in 2485 days


#7 posted 07-11-2010 01:47 AM

Ok, I get the idea. I didn’t realize it would really be a safety issue. Just wanted to be sure that the manual wasn’t overly cautious.
I do understand the value of a good blade, the Woodworker 2 makes all the difference on my cheap table saw.

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spamfilterman

149 posts in 2485 days


#8 posted 07-11-2010 02:02 AM

Ok, but what about this Freud Diablo blade:
http://www.amazon.com/D1080X-Diablo-10-Inch-80-tooth-PermaShield/dp/B00008WQ32

It seems to be highly recommended for miter saws on the internet, but it has a 15 degree hook. When is it ok?

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knotscott

7210 posts in 2838 days


#9 posted 07-11-2010 02:27 AM

Preferably 7° or less. Buying another blade with a 15° hook wouldn’t help you.

Better choices…these are all at least as good as the Diablo, some better, all with acceptable hook angles:

Best bang for the buck – Freud Avanti TK806 - $29.

Another great bang for the buck – DeWalt DW7645 from their former top of the line series 60. Full kerf, made in the UK – $32.

CMT 205.060.10 (~ $42 from Holbren with “BT310” discount code)

Infinity 010-060 – Hi-ATB grind, $60

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

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ChrisCarr

196 posts in 2361 days


#10 posted 07-11-2010 04:59 AM

I thought I saw a miter saw using a combination blade on display at sears before.

The hook is very important, like they say … use the right tool for the right job.

View PurpLev's profile

PurpLev

8523 posts in 3111 days


#11 posted 07-11-2010 05:15 AM

Another though is – a combo blade is well – a COMBO , so it does RIP and CROSS cuts well, but does not excel at either.

a miter saw (unlike a table saw) only does cross cuts, so what benefit would you get from a combo blade? none – quite the opposite, you’d get a blade that does not excel at cross cutting – which is what the miter saw is aimed to excel at.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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spamfilterman

149 posts in 2485 days


#12 posted 07-11-2010 06:05 AM

sure… I was just wondering about this because I have a spare combo blade that’s probably better at crosscuts than the OEM blade.

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knotscott

7210 posts in 2838 days


#13 posted 07-11-2010 10:53 AM

”I thought I saw a miter saw using a combination blade on display at sears before.”

That’s just proof that it’s not the correct thing to do! ;-) (Having a positive hook angle is less critical for a straight CMS than a slider though….)

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

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BTKS

1984 posts in 2927 days


#14 posted 07-11-2010 06:19 PM

spamfilterman, The diablo blade with the 15 degree hook is displayed in combination with a chop style miter saw, NO slide action. It’s the slide motion in combination with the agressive tooth that makes it dangerous. Hope all is well and the wife understands. BTKS

-- "Man's ingenuity has outrun his intelligence" (Joseph Wood Krutch)

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