I've been real happy with the Infinity blades I've purchased. (3 of them so far) I don't use mine a lot, but MDF and ply, both 3/4", haven't taken a quick toll on the 50 tooth combo blade. If you are looking for used, keep watching the forums. Jim.
Home of Irish Setter Rescue of North Texas
When Irish Eyes are smiling, they're usually up to something!!
At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3