|Forum topic by CharlesA||posted 09-10-2014 11:27 PM||3359 views||0 times favorited||11 replies|
09-10-2014 11:27 PM
I bought an Amana 6” dado blade on CL a couple of years ago, and I’ve never been totally happy with it. The bottom of the cut is often a bit uneven, and it is a pain to use all the shims for standard dado sizes. After reading that someone on LJ bought an inexpensive Oshlun dado blade set, I decided to try it. Here’s what I learned today in comparing them.
The Oshlun comes in a handsome aluminum compact case.
The construction of the two sets is very different. The Amana, although clearly used at this point, looks to be far more robustly constructed. The Amana has large carbide teeth and two-tooth chippers. The Oshlun uses round chippers with 4 teeth.
Setting them for a 3/4” dado is a very different experience. The Amana requires the use of 4 spacers in addition to 3 chippers, and I found it difficult today to get it down to 3/4” (was 1/32” over)—probably due to one of the spacers getting caught up on the threads of the arbor somewhere.
The Oshlun was far easier to setup. All the standard sizes use some combination of the chippers—the shims are there to fine tune. On the other hand, when I did the standard 3/4” setup, it was about 1/32” short of 3/4”—meaning that I’d need to fine tine with the shims to get it exactly right. The Oshlun comes with stainless shims instead of plastic.
The two stacks look very different when installed:
So, I cut a dado in scrap cherry and plywood. Often I get a somewhat uneven cut with the Amana, but today the Amana cut was very nice, and the new Oshlun was a bit uneven. The Amana is on the right, Oshlun on left.
The Amana cut in the plywood was almost flawless, the Oshlun pretty good.
I was hoping that the new set would be clearly superior to the old. That is not the case. I think the Oshlun is more user-friendly, the Amana the higher quality set. Now to figure out which one to go with. Thoughts?
-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson