Features: * Application: This diamond flat grinding wheel is suitable for grinding/cutting super hard materials, such as: gemstones, granite, marble, glass, tungsten steel, cemented carbide, ceramics, etc. It is very suitable for grinding and contour grinding. * High quality: High-quality diamond has strong adhesion, durability and long service life. * Excellent results: This diamond grinding wheel has high hardness and can realize fast cutting/grinding, making your grinding work more effective. * Tips for use: Wet and dry use, it is recommended to use wet, dry after use to prevent rust. Specification: Name: Electroplated Plastic Grinding Wheel Material: Diamond Model: #80, #120, #240, #600 Outer diameter: 150mm / 6inches Thickness: 25mm / 1inch Aperture: 25.4mm / 1inch Color: as show Packing included: 1 * Electroplated Plastic Grinding Wheel Note: 1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.