Lackmond SC16GP Silent Core SCGP Series Diamond Blade, 16-Inch by .125 by 1-Inch-20mm 16-Inch x 125 x 1-Inch-20mm Dry cut diamond blade for cutting cured concrete and masonry materials Bonded and designed for use on hand held "high speed" saws, air saws and low horsepower walk behind saws Pre and post-tensioned steel core to eliminate loss of tension and "run-out" during cutting conditions Gel-filled core keeps noise to a minimum