: Good thermal conductivity can prevent , cracks of the workpiece, and greatly improve the processing quality. ENERGY SAVING: Good grinding performance ensures a reduction in grinding performance and energy consumption. MAIN FUNCTION: Efficiently grind hard-to-machine materials such as ceramics, stone, concrete, etc. Can be used with grinding and cutting tools. ADVANTAGE: High wear resistance makes diamond grinding wheel a tool that can perform both high efficiency and precise machining. CAUTION: Avoid dust, please wear protective glasses, earplugs and a good dust mask during use. The diamond grinding wheel has strong abrasive grains, long service life and low wear, which means that the diamond grinding wheel gives full play to the wear resistance and good grinding effect. This is an perfect tool for grinding fragile materials (such as ceramics, stone, concrete, etc.). Outer diameter: 100 mm/3.94 inches Hole diameter: 22.23 mm/0.88 inch Thickness: 5.3 mm/0.2 inch Approximate weight. 220 grams Material:Diamond colour:red Package Contents: 1 x red large agglomerated bowl grinding wheel 1 x white washer Only the above package content, other products are not included. Note: Light 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 352 hours Hope you have a pleasant shopping experience!