Features Quality Materia: Made of Artificial diamond and Steel body Diamond brazing process makes these grinding wheels higher efficiency and longer life than electroplated diamond wheels. Multiple Use:Suitable for grinding quartz stone, marble, granite, ceramic, artificial stone, glass, especially for concrete exterior wall in building decoration, edging and chamfering of marble and granite decorative plates. Vacuum Brazed: The diamond abrasives are sharp and wear resistant, not easy to fall off.Vacuum Brazed Technology provide faster grinding Speed and longer working life The grinding wheel size:Outer Diameter: 7.3cm / 2.87in ; Hole Diameter: 2cm / 0.79in Dry or Wet working,Multi-purpose for Iron steel granite marble natural stone ceramic and even steel grinding Specification: Item Type: Brazed Diamond Grinding Wheel Material: Diamond Height: 1.0cm, 1.5cm, 2.0cm, 2.5cm (Optional) Outer Diameter: 7.3cm / 2.87in Hole Diameter: 2cm / 0.79in Package List: 1 x Grinding Wheel Package List 1 x Grinding Wheel