Grip-Rite GRTPDB45I 4.5-Inch Industrial Tuck Point Diamond Blade Perfect blade to use in conjunction with all sawing applications. Industrial quality blade, primarly used for mortar removal Soft bond allows fast cutting into hard material Designed for wet or dry cutting 7/8-Inch to 5/8-Inch arbor 10-mm Segment height 13,300 RPM Wet or dry