pLACKMOND Diamond Blade, Turbo Wavy Core, Series PRM Series, 8 in Diameter Blade, 78 in, DM, 58 in ArborShank, 009 in Cutting Width, DryWet Cutting Condition, 8 mm Segment Height, 009 in Kerf, Sintered Bond, 7640 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