This is a great diamond grinding wheel Designed to grind carbide and hard steel Can be used in various tools and cutter applications Resin bond for uncomplicated grinding operation with good material removal rates, while maintaining a low thermal influence on the work piece Specifications: Product Name: Diamond Grinding Wheel Type: One Tapered Side Plain Material: Diamond Color: SilverandBrown Abrasive Grain: RVD Bonding Agent: SM Concentration: 75% Grit: 150 Outside Diameter: Approx. 125mm/4.7 inch Mounting Hole Dia.: Approx. 32mm/1.26 inch for Rim Dimension: 2mm x 8mm (for T x for W) Overall Depth: 8mm/0.3 inch Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Reatil Package Package Contents: 1 x Grinding Wheel Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.