concrete cutting blades more teeth cutting faster

In general, concrete cutting blades with more teeth yield a smoother cut, and blades with fewer teeth remove material faster. A 10" blade designed for ripping lumber, for example, usually has as few as 24 teeth and is designed to quickly remove material along the length of the grain. A rip blade isn't designed to yield a mirror-smooth cut, but a good rip cutting blades will move through hardwood with little effort and leave a clean cut with minimal scoring.