Features:High quality and brand new diamond segment grinding wheel cup with high speed grinding and long service life.With holes designed to aid in and maintain a stable cutting pattern and reduced wear.Designed to provide 30% faster stock removal with double row grinding segments.Processed with high quality synthetic diamond coating that provides for a more diamond scratch pattern.Great choice for people who do granite and marble worktops, headstones, tilers, builders.Provide very fast grinding action on masonry, stone and concrete.Specifications:DIY Supplies: TilingType: Grinding WheelColor: goldMaterial: AlloyDiameter of Hole: 22mm / 0.87inchCup Shape: Dome FlangeDiameter of Grinding Wheel: 150mm (5.91inch) / 180mm (7.09inch) (Optional)Thickness of Grinding Wheel Disc Body: 2mm / 0.08 inchThickness of : 5mm / 0.20 inchWidth of : 27mm / 1.06 inch , 33mm / 1.30 inchMax. RPM: 13600Used for: High-speed Electric Grinder & Pneumatic Tools, DIY Grinding & Polishing Wood, Metal & MoldPackage Contents:3 x diamond double row grinding wheelOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.