I recently purchased the Freud 8" super dado set sd508. I noticed that my
3/4" dado quite a bit bigger and sloppier than it should have been. I
looked at the teeth seemed oversized and found that to be true when I
measured them with an electronic caliper.
outside chippers were .133-.136 instead of .125
1/8" chippers .188 instead of .125
1/16" chipper .128 instead of .0625
3/32" chipper .153 instead of .09375
I don't believe these are within the expected tolerances - is this
"normal"? I've emailed Freud about it also.
Those teeth are designed to overlap one another. They are quite a bit
wider than a normal saw blade tooth. They do that so you can add
spacers and not end up with gaps between the blades.
That being true, I also own that set and I would not consider it to have
the highest engineering tolerances. I often get bat ears and stair
steps in my dados and rabbets with that set. It's disappointing and
Freud won't admit anything.
"Playing is not something I do at night, it's my function in life"
(both outside cutters).
I had them fix the problem, they reground it. I will probably not get
another sharpening out of it probably. They had to grind the plate too.
Makes you wonder...
Call Freud , they are prtty good. Good luck.
Yes it is normal.
Tooth rests in gullet of adjacent blade.
Wait for Freud response then call them if necessary.
Had same set and it preformed delightfully.
Use that electronic caliper to verify dado width and depth set up.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.