This is a great Dado blade.  The instructions to set the cutting width are easy to read, understand and the blade is easy to configure.  I purchased this for my R4510 Ridgid 10" table saw because it recommends a max Dado blade of 6".  It works great on the saw, the cuts feed a little slower than a normal blade, but that is to be expected.  I have since changed all my blades to Freud/Diablo from the factory stuff, and what a noticeable difference.  The quality is there, and if your using an "underpowered" table saw, this is a great option for you.