IRWIN Tools Classic Series Carbide Table / Miter Circular Saw Blade, 8 1/4-inch, 40T (15250),Irwin Tools,15250" /> Ultra-thin kerf delivers more cuts per charge and extends cordless tool battery life. 400 grit diamond-ground construction-grade carbide teeth make for fast, clean cuts and long tool life. The aggressive hook angle cuts fast. Blade is precision-tensioned and balanced for optimal performance with miter and table saws where smooth finish and accurate cuts are critical. 40 tooth count blades are ideally suited for trim and finish jobs and cutting plywood quickly.