Diamond Saw Blade, Cutting Type Dry, Rim Type Segmented, Blade Dia. 4 In., Cutting Depth 1 In., Max. RPM 15000, Arbor Hole 5/8, 7/8 In., Diamond Knockout No, Application Masonry and Concrete, Grade Good, For Use With Angle Grinder and Other Hand Held Tools, Plate Thickness 0.080 In. RestrictionsCalifornia Proposition 65 Warning: This product contains a chemical known to the State of California to cause cancer.