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Thread: RAS Blade

  1. #1
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    Nov 2009
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    RAS Blade

    Hi I have an old Dewalt RAS MBF. Getting it going and I know that it takes a 9 inch blade. Do most people that use this saw use a 9 inch or just go with an easier to find 8 and a half? David

  2. #2
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    Aug 2006
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    I just picked up an old MBF a couple weeks ago, and have been using an 8 1/2" Freud LU83 which was reccomended over on the Delphi forums. I'm sure the special order 9" blade from Forrest is better, but at less than half the cost the Freud works just fine for me.

  3. #3
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    Aug 2007
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    Harrison Twp., MI
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    +1 on the Freud LU83R008. Nobody makes an appropriate 9" blade for this saw, and the only thing a 9" can do that an 8" can't, is bevel cut 2x lumber.
    DESIGN is EVERYTHING! Without good design, the greatest craftsmanship is wasted. Not all great museum pieces are of the best craftsmanship. It was design that made them a treasure. -- Wallace Kunkel, aka Mr. Sawdust

  4. #4
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    If I used it a lot I would get a 9" and get the value out of the more expensive blade.

    I have a question about the thin kerf blade, I normally like full kerf blades on RAS so the blade doesn't wander. Is there an issue with power? I figured a true 3/4hp motor wouldn't have trouble with most crosscuts.

  5. #5
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    Quote Originally Posted by Van Huskey View Post
    If I used it a lot I would get a 9" and get the value out of the more expensive blade.

    I have a question about the thin kerf blade, I normally like full kerf blades on RAS so the blade doesn't wander. Is there an issue with power? I figured a true 3/4hp motor wouldn't have trouble with most crosscuts.
    The motor does feel a little underpowered to me, but then again all I've used it for so far is crosscutting a bunch of 6/4 hardwoods (mesquite and rock maple). I was also a little worried about blade wander with the thin kerf, so I've been using a stiffener with mine.

  6. #6
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    Thanks for your answers. David

  7. #7
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    Oct 2007
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    I have used blades from 8 to 9" in my MBC and MBF and the smaller blades seem to work a little better, and you don't lose much in capacity. However, if all you plan to do is crosscut I would recommend either the Freud LU91R008 (regular kerf) or LU91M008 (thin kerf). Both are a 48 tooth ATB zero hook angle blade which is more suitable for a RAS. The LU83 is a general purpose blade with a positive hook which will tend to self feed more on a RAS. That is, unless you also plan to rip on your RAS (I don't); then the LU83 would probably be a better choice as the LU91 blades aren't really made for ripping.

  8. #8
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    May 2009
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    Quote Originally Posted by Jason Hallowell View Post
    I just picked up an old MBF a couple weeks ago, and have been using an 8 1/2" Freud LU83 which was reccomended over on the Delphi forums. I'm sure the special order 9" blade from Forrest is better, but at less than half the cost the Freud works just fine for me.
    Same here. "Cuts like Buttaa"

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