8" Blade In 9" RAS - Router Forums
 
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post #1 of 7 (permalink) Old 03-31-2014, 11:31 AM Thread Starter
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Default 8" Blade In 9" RAS

Hi all,

I have an old (1972) Craftsman 9" radial arm saw. 9" blades are not available in the big stores nor are they available in most of the local hardware stores. Amazon has some selections from Freud and Vermont American and a couple others. I did get a Freud LU88 and I'm very happy with it. 8" blades are available in stores and 9" blades don't even exist according to some salesmen. So my question is; Can I use an 8" blade on a 9" RAS? Is there any draw back or safety issue to doing this? The only thing I can think of that would change is the speed at the OD of the blade and a 1/2" on the bottom of the blade for adjustment.

Thanks in advance for your chimes.
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post #2 of 7 (permalink) Old 03-31-2014, 11:38 AM
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depth of cut should be the only drawback I'd think...maybe build up the table to make the gauge etc...work properly?? taking up the difference?

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post #3 of 7 (permalink) Old 03-31-2014, 02:35 PM
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Ben; I personally have never had a Forrest blade, but from what I've read, they are excellent!
Probably worth every penny...
Amazon.com: Forrest WW09607100 Woodworker I 9-Inch 60 Tooth ATB General Purpose Saw Blade with 5/8-Inch Arbor: Home Improvement
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post #4 of 7 (permalink) Old 03-31-2014, 03:09 PM
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You would only lose 1/2" of your depth of cut... BUT--

Maybe you should expand your search criteria and how you serach:
https://www.google.com/search?q=9+ci...frued&tbm=shop
https://www.google.com/search?q=9+ci...Q&ved=0CCYQsxg
https://www.google.com/search?q=9+ci...w&ved=0CCYQsxg
https://www.google.com/search?q=9+ci...irwin&tbm=shop
https://www.google.com/search?q=9+ci...blade&tbm=shop

That was less the one minute of searching.

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post #5 of 7 (permalink) Old 03-31-2014, 04:23 PM Thread Starter
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Quote From BC,
"depth of cut should be the only drawback I'd think...maybe build up the table to make the gauge etc...work properly?? taking up the difference?"

Thanks BC, Actually the only gauges are for degrees on this machine. It was probably one of the lower end RAS's of the time. So no measurement markings to adjust the table to. If there were I'd definitely take your advice and raise the table height.

Quote From Dan,
"Ben; I personally have never had a Forrest blade, but from what I've read, they are excellent!
Probably worth every penny.."

Thanks Dan, I did look at the Forrest blades and read that they are top quality but the price is out of my range right now. Maybe down the road. The Freud LU88 was a bit out of my range at the moment but seemed like the most practical choice and I'm happy with it. It did a nice job on 3/4" hard maple with both cross cut and ripping.

Quote from Mike
"You would only lose 1/2" of your depth of cut... BUT--
Maybe you should expand your search criteria and how you search:"
(list of urls here. can't post them yet)


Thank you Mike. I did search and came up with pretty much what you got here. I did buy the Freud LU88009 on Amazon but it took over a week to get here. I should've made my original question more clear as it pertains to what is available in stores that I can walk into. Whereas I'm not going to find a 9" blade anywhere other than mail order but I'll easily be able to pick up an 8" at any local hardware store or big box store.


The input from your responses tells me that it would be ok to do this if I had to. I would imagine that going with a bigger blade would be a bad idea A) because of blade guard clearance and B) extra strain on a motor that may not be intended for the larger blade. But the smaller blade makes me ask "why not"?

Thanks for the responses gentlemen.
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post #6 of 7 (permalink) Old 03-31-2014, 07:00 PM
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Ben; Having a spare 9" blade sitting on the shelf might work for you(?).
It'll take the pressure off when you actually need it.
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post #7 of 7 (permalink) Old 03-31-2014, 08:35 PM
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Quote:
Originally Posted by DaninVan View Post
Ben; Having a spare 9" blade sitting on the shelf might work for you(?).
It'll take the pressure off when you actually need it.
That's what I do for my saws. 8" blades are as hard to find locally "here." So are local sources of 12" Table Saw blades and split scoring blades.

"Don't worry, I saw this work in a cartoon once."
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