Setting my expectations on Oshlun SDS-0842 8-Inch Dado

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Forum topic by ppg677 posted 02-22-2016 05:32 AM 672 views 0 times favorited 3 replies Add to Favorites Watch
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171 posts in 825 days

02-22-2016 05:32 AM

I’ve had this for a week. I’m new to woodworking, so I don’t know what to expect. I knew that this Dado set produces little bat wings which I indeed see when examining closely.

But what about grooves? Shown below is slight grooves in a 0.75” wide Dado cut. It’s really not much. I wonder if I positioned the blades differently if the grooves would go away? I didn’t notice any grooves in the box cuts I made.

Please don’t tell me to go buy a $300 Dado. I’m a newbie weekend warrier :-) Now perhaps the $100 Freud or the $130 DeWalt were better choices and I could still return this if so.

Also this thing is really heavy. My Ridgid R4512 seems to spin it ok (takes forever to stop)...hopefully its not too much weight for the arbor or anything. I noticed that the Freud chippers are small instead of full-size steel discs.

3 replies so far

View Ger21's profile


1074 posts in 3100 days

#1 posted 02-22-2016 01:41 PM

Looks like your chippers may have slightly different diameters. Having it sharpened by someone that knows what they’re doing should fix that. It might cost $40-50, though.

-- Gerry,

View knotscott's profile


7983 posts in 3344 days

#2 posted 02-22-2016 02:28 PM

If you can still return it, I would. The DW/Delta 7670 cuts better, has better shim stock, and a great carrying case. It also has chippers that have more of their mass at the center of the blades, and less mass at the outside which does make it easier to get up to speed. Sears has the same set under their name, and it sometimes goes on sale for < $90.

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

View ppg677's profile


171 posts in 825 days

#3 posted 02-25-2016 02:19 AM

I went and bought the Craftsman model. It was $100 and is exactly like you showed (24t blades, 4-tooth chippers, plastic carrying case), which as you say, appears to be the same as the Dewalt 7670. I’m glad I didn’t return the Oshlun because I’ll be returning the Craftsman instead.

Yes, the Craftsman makes for a cleaner cut and less bat ears. Still some slight ridges. But the tearout with the Craftsman/Dewalt is really really bad whereas the Oshlun does not exhibit tearout.

First, the ridges between the two.



Winner: Craftsman/Dewalt

The squareness is next.



Winner: Craftsman/Dewalt

Now for the tear out. The Oshlun did not exhibit tearout. The Craftsman tearout is terrible!! Which makes it a DEALBREAKER.

Craftsman Tearout:

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