ROC Abrasives: Cup Wheel - Single Row Grinding Cup Premium grade, single-row, grinding cup, designed for the removal, shaping, and smoothing of concrete, masonry, and stone aggregates. Product Specification: Available Blade Sizes: 4", 4.5", 5", 7" Arbor Size: 7/8-5/8" to 5/8-11 Segment Height: 5mm (.196") Application: Concrete, Masonry Saw Type: Small & Large Angle Grinder Dry / Wet Cutting