pLACKMOND Diamond Blade, Turbo Wavy Core, Series PRM Series, 9 in Diameter Blade, 78 in, DM, 58 in ArborShank, 01 in Cutting Width, DryWet Cutting Condition, 8 mm Segment Height, 01 in Kerf, Sintered Bond, 6790 rpm Maximum, Applicable Materials Cured Concrete and Hard MaterialsppThe PRM Series wavy core design keeps the blade cool while removing debris from the cut Ideal for use in cured concrete and harder materialsp