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7 1/4" x 1 1/8" bore/hole circular saw blades?

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Forum topic by mountainaxe posted 06-29-2018 05:40 PM 2732 views 0 times favorited 25 replies Add to Favorites Watch
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mountainaxe

153 posts in 2925 days


06-29-2018 05:40 PM

Topic tags/keywords: circular saw power tools question resource

Just picked up this nice/vintage B&D 7” circular saw…replaced brushes and power cord and cleaned up the red paint it was covered with. It’s a tank and runs much more smoothly/stronger than a newer saw I own…and looks good, too. These old saws, I’ve found, use blades with a 1 1/8” arbor hole. A search of the internet for these blades isn’t exactly helpful and nothing shows up except for some sketchy items made in the UK. The one U.S. exception is Forest Mfg. which does make a rather expensive 7 1/4” x 1 1/8” bore blade for $145. So, I’m looking for alternatives. Does anyone know of other sources to purchase new blades with the larger arbor hole…at a reasonable price?


-- Jeff, "The things I make may be for others, but how I make them is for me."


25 replies so far

View knotscott's profile

knotscott

8297 posts in 3795 days


#1 posted 06-29-2018 06:20 PM

You’ll probably have better luck finding a spacer to reduce the bore to something more standard.

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

View Kazooman's profile

Kazooman

1325 posts in 2372 days


#2 posted 06-29-2018 07:19 PM



You ll probably have better luck finding a spacer to reduce the bore to something more standard.

- knotscott

I’m having a hard time wrapping my head around that. The arbor shaft is 1 1/8”. Are you envisioning something that would fit over that with a smaller diameter shaft sticking out of it? That would move the blade over quite a bit.

View BroncoBrian's profile

BroncoBrian

875 posts in 2378 days


#3 posted 06-29-2018 07:28 PM

Knotscott, was that reversing the problem?

If I were you, I would get the Forrest blade. That is a cool tool, the blade will last a very long time and Forrest will sharpen it for you.

I don’t think you can drill out a blade to make it larger unless a machine shop can do it for you.

-- A severed foot is the ultimate stocking stuffer.

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knotscott

8297 posts in 3795 days


#4 posted 06-29-2018 09:06 PM

I’m having trouble wrapping my head around it too! ...got it backarseward! (cue Rosanne Rosanna Danna voice) “nevermind”

It shouldn’t be too expensive to have a shop make the blade bore bigger.

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

View smitdog's profile

smitdog

433 posts in 2525 days


#5 posted 06-29-2018 09:19 PM

I was going to suggest taking a standard blade to a metal shop to have them bore it out. Get several of them at once and stock up since it would probably cost a lot less to do them all at once rather than one at a time.

-- Jarrett - Mount Vernon, Ohio

View mountainaxe's profile

mountainaxe

153 posts in 2925 days


#6 posted 06-29-2018 09:22 PM

Pretty simple really…I need to locate a source that sella 7 1/4” circular saw blades that have bore holes of 1 1/8”.

-- Jeff, "The things I make may be for others, but how I make them is for me."

View Woodknack's profile

Woodknack

12842 posts in 2800 days


#7 posted 06-29-2018 10:27 PM

Might be cheaper in the long run to machine the arbor down to 30mm or 1 inch.


(cue Rosanne Rosanna Danna voice) “nevermind”
- knotscott

Haven’t seen that reference in a looong time.

-- Rick M, http://thewoodknack.blogspot.com/

View Richard's profile

Richard

11274 posts in 3452 days


#8 posted 06-29-2018 10:35 PM

Why does it appear to me that the Teeth on that Blade are running Clockwise (DOWN) instead of UP?

I saw one on YouTube that did exactly that. I commented and the OP said “That’s the way it’s suppose to run You Idiot!” (HU? Constant Kickback Mode?)

Maybe I need Glasses or something.

Rick

-- Richard (Ontario, CANADA)

View builtinbkyn's profile

builtinbkyn

2939 posts in 1360 days


#9 posted 06-29-2018 11:04 PM


Why does it appear to me that the Teeth on that Blade are running Clockwise (DOWN) instead of UP?

I saw one on YouTube that did exactly that. I commented and the OP said “That s the way it s suppose to run You Idiot!” (HU? Constant Kickback Mode?)

Maybe I need Glasses or something.

Rick

- Rick


You are seeing that correctly. Unless there’s something I don’t know about this saw, the blade is in the wrong way.

-- Bill, Yo!......in Brooklyn & Steel City :)

View AHuxley's profile

AHuxley

874 posts in 3741 days


#10 posted 06-29-2018 11:15 PM

Most decent saw shops can bore the arbor hole of a blade to a larger size, it is usually $10-15 on a blade you provide.

View mountainaxe's profile

mountainaxe

153 posts in 2925 days


#11 posted 06-29-2018 11:22 PM

Calm down guys! Blade is ancient, rusty, unuseable, and will not be used…just sitting on the saw as found…doubt if it would even cut butter regardless of direction…which is why I need sources to buy a new blade…

-- Jeff, "The things I make may be for others, but how I make them is for me."

View bandit571's profile

bandit571

23185 posts in 3103 days


#12 posted 06-30-2018 12:41 AM

Maybe see about a “Step drill” bit, that goes up to the required size?

-- A Planer? I'M the planer, this is what I use

View 000's profile

000

2859 posts in 1319 days


#13 posted 06-30-2018 02:18 AM

Most blades have an arbor hole knockout plug. (whatever you call it)
How big are the arbor holes if you knock it out?

View Richard's profile

Richard

11274 posts in 3452 days


#14 posted 06-30-2018 04:17 AM


Calm down guys! Blade is ancient, rusty, unuseable, and will not be used…just sitting on the saw as found…doubt if it would even cut butter regardless of direction…which is why I need sources to buy a new blade…

- mountainaxe

” Calm Down Guys” AND “Regardless Of DIRECTION?” That’s all you want is a New Blade? Go Anywhere with the Proper Specs AND/OR The Old Blade.

What’s the Big Deal!

Here’a ONE Page from Home Depot with 105 Different Types of Blades.

Bladeshttps: //www.homedepot.ca/en/home/categories/tools/power-tool-accessori

Sorry. It won’t load Properly.

Rick

PS: Maybe this one will load properly …..

https://www.homedepot.ca/en/home/search.html?q=Circular%20Saw%20Blade# ..... It appears to have Loaded Okay. Happy Shopping!

-- Richard (Ontario, CANADA)

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Richard

11274 posts in 3452 days


#15 posted 06-30-2018 04:40 AM

(Another Partial Re-Quote of the above. Useless)

-- Richard (Ontario, CANADA)

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