I just bought a dado blade set and going by the directions for a 3/4 dado it said for me to use the inside and outside blade and 4 of the 1/8 chippers,,which I did and it does cut a 3/4 groove but its not as tight as I like it to be,,im really new at using the dado blades,,so if anyone can help me get a tighter fit I really would appreciate it,,thank you