Lackmond 14BESG 14-Inch Dry High Speed General Purpose Concrete Blade Equipped with pre and post-tensioned steel centers that help eliminate loss of tension and "run-out" during cutting conditions These blades are bonded and designed for use on hand held "high speed" saws, air saws and low horsepower walk behind saws The "BEAST" Series of products is designed for the value conscious user, delivering maximum longevity at the lowest cost 1"-20mm arbor with bushing