I finally got around to using my new Oshlun 8" Dado set and was more then pleased with the performance of this set. The dado's were exact in size and flat on the bottoms. Everything is marked as to size and it came with instructions on which blade combination to use for various widths. It was a good purchase I think and would highly recommend it. I have the Model SDS-0842 that works from 1/4" to 29/32".