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I have a 7 inch Craftsman circular saw. I'm replacing the rip cut blade that came with it, with a new Norton Blufire metal cutting blade. The issue is the new blade is thicker so now the outer clamp washer won't fit over the housing and lock in place.

Is the normal? Is that washer optional?

Not sure what to do and don't want to make a drastic stupid mistake.

Here's the blade.

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How the outer washer clamp is supposed to fit on the housing.

enter image description here

When you place the blade in the saw, the washer won't lock into the housing. Even if I turn it over, it doesn't really fit. It fits slightly, but it doesn't seem secure... or has room for error.

enter image description here

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    Wait — is that a grinder blade you’re trying to run in a saw? Don’t. Sep 3, 2023 at 23:39
  • Which Norton Blufire blade specifically are you trying to use?
    – brhans
    Sep 3, 2023 at 23:47
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    A typical Craftsman home circular saw is not really intended for cutting metal. Consider a hacksaw with a metal-cutting blade?
    – keshlam
    Sep 4, 2023 at 0:15
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    @ptownbro You're using the wrong parts with the equipment. It is expected to not fit. And yes, the washer is required. If they are optional, they wouldn't be there in the first place.
    – Nelson
    Sep 4, 2023 at 0:48
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    @AloysiusDefenestrate I didn't say a grinder disc wouldn't work better, it's just that the thickness makes it the wrong kind of blade for the circular saw. In the right tool, a grinder disc works!
    – Huesmann
    Sep 5, 2023 at 11:38

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