Specifications: Brazed Diamond Grinding Wheel Material: Diamond Outer Diameter: 7.3cm/2.87 inch Hole Diameter: 2cm/0.79 inch WIDE USE: Brazed diamond grinding wheels are suitable for grinding quartz stone, marble, granite, ceramic, artificial stone, glass, especially for sealing and chamfering of concrete facades, marble and granite decorative panels in building renovation. High Efficiency: Diamond brazing process makes these grinding wheels more efficient and durable than electroplated diamond grinding wheels. Clean, Wear-Resistant: Diamond abrasives are sharp and wear-resistant, not easy to fall off. Easy to use for dry and wet grinding. Packing list: 1 x Grinding wheel (other products not included) Attention. Since the size is measured manually, there may be a measurement error of 1-3 cm. Due to the wide variety of displays, the actual product may differ from the photo.