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Stacked dado sets, 6" & 8" what's the difference?

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Forum topic by bluekingfisher posted 04-26-2012 07:27 AM 1931 views 1 time favorited 12 replies Add to Favorites Watch
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bluekingfisher

1246 posts in 2446 days


04-26-2012 07:27 AM

Has anybody found any great difference in the performance of a 6” dado set over and 8” version or vise versa?

I realise the 6” version is primarily to deal with under powered saws but would a 6” dado set perform just as well on a 3HP cabinet saw for instance.

Thanks in advance.

David

-- No one plans to fail, they just, just fail to plan


12 replies so far

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David Craig

2136 posts in 2575 days


#1 posted 04-26-2012 08:25 AM

I have a 1.5 hp saw so I went with a 6 inch as adverse to the 8 inch. I was quite satisfied with this arrangement but did regret the limit of 1 1/4 inch depth of cut one time. I was making a half lap in 3 inch thick material and needed a 1 1/2 inch deep dado 3 inches long. With a standard blade, I had to make 24 passes, x 4 for the pieces in which I had to make that cut. If I had a 3 HP, I would go with the 8 inch set.

-- There is little that is simple when it comes to making a simple box.

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kizerpea

774 posts in 1834 days


#2 posted 04-26-2012 12:05 PM

i use a 8in. got a 6 to but like the 8 better..

-- IF YOUR NOT MAKING DUST...YOU ARE COLLECTING IT! SOUTH CAROLINA.

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knotscott

7224 posts in 2842 days


#3 posted 04-26-2012 12:22 PM

If you’ve already got the dado set, a 6” should work fine. If you’re shopping for a set, I’d lean toward the 8”....there are more 8” sets to choose from, which usually means a better deal, but if you happen to stumble into a great deal on a 6”, all is well. If all else is equal, there are also minor performance advantages with an 8”, but there are certainly some examples of 6” premium sets that’ll cut circles around a poor quality 8” set. The overall quality is a more critical factor than the diameter IMO.

best set

best deal

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

View crank49's profile

crank49

3981 posts in 2438 days


#4 posted 04-26-2012 12:26 PM

The difference is about 2 inches.

I have a 8” dado for my 1 3/4 hp saw, but frankly, it’s more trouble to install it than it’s worth.
That would be true for a 6” or an 8” in my case.

Your mileage may differ. Depends on what you make.

For a half lap joint in 4X material I’d rather make about 7 or 8, half inch wide cuts, knock out the waste with a hammer then pare the bottom flat with a chisel and plane, than go through the hassle of changing blades.

I’m sure I’d feel different if I were making cabinets or bookcases all the time.

-- Michael: Hillary has a long list of accomplishments, though most DAs would refer to them as felonies.

View Bill White's profile

Bill White

4457 posts in 3427 days


#5 posted 04-26-2012 01:23 PM

I see MANY folks who don’t want to fuss with a dado. Guess I’ll stick with my router. That mean I’m bucks ahead.
Bill

-- bill@magraphics.us

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bluekingfisher

1246 posts in 2446 days


#6 posted 04-26-2012 01:42 PM

Thqanks for all the feed back fellahs, I’m guessing no real performance differential, other than what the operator is comfortable using.

Question answered, much appreciated

-- No one plans to fail, they just, just fail to plan

View helluvawreck's profile

helluvawreck

23199 posts in 2333 days


#7 posted 04-26-2012 01:48 PM

I use my dado set all the time and I don’t find it to be a big change over problem. My saw is a PM2000 and has a convenient arbor lock and my wrench and saw blades are kept close by. The saw also has a strong magnetic disk that is quickly removed to disable the saw’s ability to be started accidentally. Blade changing is quite efficient on my saw. You just remove the disc from the push button box and stick it on the saw top or fence and the magnetic force will keep it there until you put it back and it’s just a few seconds to mess with the disc. The 6 inch dado set works fine for me.

helluvawreck
https://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

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bluekingfisher

1246 posts in 2446 days


#8 posted 04-26-2012 01:56 PM

Helluva – thanks for your input, I have a 16A commando plug socket on my saw located on the wall to the roght of the saw.

I keep the wrench tied on a lenght of string so when I reach for it to change the blade I pull the plug at the time. The string is not long enough to reach the arbor when the plug is in the socket so I have no option but to make the operation safe .

-- No one plans to fail, they just, just fail to plan

View Rick  Dennington's profile

Rick Dennington

5183 posts in 2661 days


#9 posted 04-26-2012 01:59 PM

Morning david:

Go for it…...if you’ve already got the 6”, then by all means use it…..You can do just as much (in my opinion) with a 6” set as you can with an 8” set….Probably 95% of the time you are just going to cut dados and rabbits, and about 1/4”——3/8” is all you’ll need on the blade heigth….Cutting halflaps was mentioned…..if you ever need to do half laps, then you can cut them on your RAS….I have 3 sets of dados….2 8”, and a 6”...I’ve used both sizes to cut half laps on the ras, and one is as good as the other ….Like was mentioned, the difference being the heigth of the blades…but over-all, the 6” will work just fine on your saw…..My old Craftsman is set up strickly for dados and rabbits, is a 3 h.p., and I’ve used the 6” with no problems…..Note: Like a lot of woodworkers, I learned to do half laps from Norm….He was the “guru” of woodworking back then…...lol. By the way: I owe you an rmail…

-- At my age, an "all--nighter" is not having to get up and pee...!!!

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bluekingfisher

1246 posts in 2446 days


#10 posted 04-26-2012 02:08 PM

Afternoon Rick, thanks for the confirmation. I have an 8” set but have the chance of a 6” set so just wonder if the price is right to go for it. From all the respnses it would appear most if not all of the work can be done by the smaller blades.

Always good to have a doubler, right?

D

-- No one plans to fail, they just, just fail to plan

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Rick Dennington

5183 posts in 2661 days


#11 posted 04-26-2012 02:17 PM

Yep….nothing wrong with having 2 of something like a dado set or any other tool…. The nice thing about having an extra dado set, like having a few saw blades….if you happen to break or chip a tooth on either type of blades, you have a backup, just in case…... Remember: two is better than one, anyday…..

-- At my age, an "all--nighter" is not having to get up and pee...!!!

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bluekingfisher

1246 posts in 2446 days


#12 posted 04-26-2012 02:23 PM

My thoughts exactly

-- No one plans to fail, they just, just fail to plan

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