7" Dado blade on a 10" Table Saw?? - Router Forums
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post #1 of 19 (permalink) Old 12-01-2012, 04:32 PM Thread Starter
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Default 7" Dado blade on a 10" Table Saw??

I have a new 10" Grizzly G0691 table saw scheduled for delivery this Monday. Probably should find a table saw forum for questions on that but I've gotten such helpful answers pertaining to anything wood related on RouterForums I hate to look elsewhere for advice.

I recently found buried in my garage full of treasures, (which my wife calls other names that she will have to deal with upon my death), a Craftsman 7" Kromedge Thin Rim-Satin Cut Dado Set. Cat. # 9-3257. I have no recollection of ever buying it or using it. It appears to be brand new, never used.

My question is two fold:
1. Can I use the 7" safely in my new 10" table saw.
2. If so, is there a manual available for it? Never used such a blade set. Only slight experience with a wobble dado blade.

Thanks

Mike
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post #2 of 19 (permalink) Old 12-01-2012, 04:41 PM
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Mike, I don't see a 7" dado set creating any problems. Most set are only 6" or 8" anyway as you are only cutting a shallow groove in the work piece not all the way through a 2 X 4...

My CMT 8" dado set had the instructions on the inside of the case. The most important thing is to be able to know the thickness of the chippers and shims. My shims are colour coded...

Using Stacked Dado Blades - NewWoodworker.com LLC
Attached Files
File Type: pdf 230-524-08_precision_dado_manual-1.pdf (149.5 KB, 212 views)

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post #3 of 19 (permalink) Old 12-01-2012, 05:48 PM
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"...My CMT 8" dado set"
-James

How do you like it, James (the CMT specifically)? Quality of cut?
I've just recently started using their (CMT) combination blade Circular saw blades-Industrial general purpose-CMT tools
I love it! They only give their own blade a 'Good' for plywood, but I'm more than satisfied with the quality of cut.
I'll be switching my scms over to CMT sooner rather than later.
Circular saw blades-Industrial sliding compound miter & radial-CMT tools
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post #4 of 19 (permalink) Old 12-01-2012, 05:50 PM
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Have not fired it in anger, yet Dan.

Working on some small projects using the router table> (repairing wind chimes)

PS I have been upgrading some of my equipment since I retired and CMT seems to be the only 'brand name' on sale here in Sydney.

The cost of freight for online sales makes them very expensive.

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post #5 of 19 (permalink) Old 12-01-2012, 05:53 PM
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Mike.. that dado set should work just fine on your new Griz! 5/8" arbor is all you need. The set should come with 2 blades and 5 chippers and a set of shims. If you don't have the shims, Lee Valley has some nice plastic ones that should work just fine.

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post #6 of 19 (permalink) Old 12-01-2012, 06:03 PM
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Originally Posted by jw2170 View Post
Have not fired it in anger, yet Dan.

Working on some small projects using the router table> (repairing wind chimes)

PS I have been upgrading some of my equipment since I retired and CMT seems to be the only 'brand name' on sale here in Sydney.

The cost of freight for online sales makes them very expensive.
"The cost of freight for online sales makes them very expensive."
I hear that!

I noted a while back that Osborne had their miter gauges on sale at a huge discount...plus they cut their shipping in 1/2!! Mine just arrived on Thursday: my all in cost, delivered, was still 25$ less than the MFG. list price. Xmas came early
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post #7 of 19 (permalink) Old 12-01-2012, 09:09 PM
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I have one of those that I bought years ago. It works fairly well. The cuts are decently smooth but the bottoms are not flat. The outer corners are a little deeper. I've made lots of dadoes with it and a few box joints. As long as you cover the joint with some face trim that set is very useable. I also bought the shim set from Lee Valley for fine tuning. I'm not sure there was any manual that came with it but there really isn't much to it. Just make sure the outer blades are on the correct sides and rotating the right way.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #8 of 19 (permalink) Old 12-02-2012, 12:08 AM
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Quote:
Originally Posted by JudgeMike View Post
I have a new 10" Grizzly G0691 table saw scheduled for delivery this Monday. Probably should find a table saw forum for questions on that but I've gotten such helpful answers pertaining to anything wood related on RouterForums I hate to look elsewhere for advice.

I recently found buried in my garage full of treasures, (which my wife calls other names that she will have to deal with upon my death), a Craftsman 7" Kromedge Thin Rim-Satin Cut Dado Set. Cat. # 9-3257. I have no recollection of ever buying it or using it. It appears to be brand new, never used.

My question is two fold:
1. Can I use the 7" safely in my new 10" table saw.
2. If so, is there a manual available for it? Never used such a blade set. Only slight experience with a wobble dado blade.

Thanks

Mike
On number 1. Yes, to the spec's your saw says it can. Meaning Grizzly says you can use a dado up to a 13/16" wide and 8" in diameter. What they didn't say, which is assumed... Is that you need to use a dado insert with it. that might be something you will want order or make.

Stacked dado's are fairly straight forward. Figure out how wide a dado you need. Always use the outside blades. Between them use chippers to add width. Use shims to adjust in more width to bring it into fine tuning of what you need. For instance, 2 outside blade (1/8" each), 2 1/8" chippers, a 1/16" chipper and a 0.005" shim equals 0.5675". Why the in-betweens? 3/4" plywood is smaller than 0.75".

So order goes dado blades, with chippers sandwiched between them, with shims spread out between the blades and chippers. Don't put the shims all together, rather spread them out. I turn the blades and chippers so the teeth are rotated spread out between- sort of like blade, chipper with teeth not touching each other,next chipper turned about 30 degrees or such... and on.

That may sound anal. But I figure it evens out the cut... and carbide teeth are brittle. I don't want the carbide teeth touching each other. They also don't dull as fast that way.

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post #9 of 19 (permalink) Old 12-02-2012, 12:08 AM
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Quote:
Originally Posted by Cherryville Chuck View Post
I have one of those that I bought years ago. It works fairly well. The cuts are decently smooth but the bottoms are not flat. The outer corners are a little deeper. I've made lots of dadoes with it and a few box joints. As long as you cover the joint with some face trim that set is very useable. I also bought the shim set from Lee Valley for fine tuning. I'm not sure there was any manual that came with it but there really isn't much to it. Just make sure the outer blades are on the correct sides and rotating the right way.
Charles; I think they've updated their technology...
Circular saw blades-Precision dado-CMT tools
Circular saw blades-Precision dado-CMT tools
Circular saw blades-Precision dado-CMT tools
Let me know your opinion after you've had a chance to look at the specs?
(The orange series is what I have in the blade...Teflon coating)
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post #10 of 19 (permalink) Old 12-02-2012, 06:27 AM
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Originally Posted by DaninVan View Post
Charles; I think they've updated their technology...
Circular saw blades-Precision dado-CMT tools
Circular saw blades-Precision dado-CMT tools
Circular saw blades-Precision dado-CMT tools
Let me know your opinion after you've had a chance to look at the specs?
(The orange series is what I have in the blade...Teflon coating)
I've been using CMT blade and router bit's for a long time (rout a cove on a stair step, front and side 13 pieces and no sing or wear) and I didn't find better yet, hard to not be satisfied, CMT and Freud are my choice in this order and in Canada you can have them at Summit Tool, there is one in Vancouver www.summittools.com and one in Quebec (St-Jerome)http://outillagesummit.com/.
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