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  1. #1
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    Marvin Watkins (51)
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    Replacing Blade on a B&D 7 1/4" Circular Saw

    My first and only circluar saw is a Black & Decker 7308. I recently bought one of the Freud Diablo blades for it. I have heard a lot of good things about this blade. (If it is anything like my new Freud Thin Kerf Combination (LU) for my table saw, I will be VERY happy.)

    I have managed to get the old blade off using a piece of scrape to hold the blade while I loosened the nut. But now, I need to tighten the nut again. On my B&D router there is a simple step to lock the motor for tightening. Is there a similar procedure for circular saws, particlarly B&D's?

    Any help will be greatly appreciated.

    I hope everyone had a great Easter weekend.
    Marvin A. Watkins
    Hillsborough, NC

    Making sawdust when I can...

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    Re: Replacing Blade on a B&D 7 1/4" Circular Saw

    Just hold the blade with a pair of gloves and tighten the nut down. Due to the reverse threads on the saw arbor, it will tighten itself as the blade spins, so you don't have to torque it down to hard.
    Dave:-)
    :-D Nothing left to do but smile, smile, smile :-D

    Honestly Honey, that will cost around $100 $150 $200, and I need a few more tools.

    Heard from a client..."If I had your tools and experience...I could do it myself"

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    Re: Replacing Blade on a B&D 7 1/4" Circular Saw

    Marvin, not sure about your B&D saw but many circular saws have a button behind the blade that will lock the shaft from turning when it is depressed. I know its a silly question, but does your's have one of those?

    D L
    People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf. George Orwell (1903 - 1950)

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    Re: Replacing Blade on a B&D 7 1/4" Circular Saw

    Marvin,

    I have old Skil circ saw and I usually don't have a problem just holding the blade by hand (wearing a leather glove!), as DaveO suggested.

    By the way, I recently put a Freud Diablo on my saw. Cutting 3/4" plywood and 4/4 oak, I was amazed at how smooth the cut was! Got literally very negligible tearout! I think that you will be very pleased with that blade.

    Good luck,

    Wayne
    ..............found out many years ago that Elbow Grease doesn't come in a bottle!!!!

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    Re: Replacing Blade on a B&D 7 1/4" Circular Saw

    My B&D blades have a 1/4" hole in the blade through which you stick a screw driver or similar and lock it against the frame of the saw.
    David
    "There is no trouble so great or grave that cannot be much diminished by a nice cup of tea" Bernard-Paul Heroux

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    Re: Replacing Blade on a B&D 7 1/4" Circular Saw

    Thanks guys for your rapid response. I did end up just snugging it up and the saw did the rest. It's a shame that I have had that saw for so long, but never bothered to replace or change the blade.

    The Diablo made a world of difference. The saw zipped thorough the pressure treated lumber that I was using. Worked great nibbling away for a half lap on some of the joints. Clean cuts and as Wayne said no tearout. It is very much worth the 16 bucks it cost.

    Unfortunately, mother nature didn't let me finish the fencing work. That storm sent me indoors prematurely.
    Marvin A. Watkins
    Hillsborough, NC

    Making sawdust when I can...

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    Re: Replacing Blade on a B&D 7 1/4" Circular Saw

    that storm that sent you in early from doing your fence, knocked through several large garage doors here in Fayetteville yesterday. One of them was at a discount builders supply type of place.
    Failure is the opportunity to begin again more intelligently. – Henry Ford

    However your life is, meet it and live it.
    Henry David Thoreau

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