PROFESSIONAL QUALITY: The continuous rim design with extremely fine diamond particles enables precise, chip-free cuts to help you work quickly and efficiently, and quality control measures exceptional performance. Efficient Use: Suitable for 4inch angle grinders/stone saws/circular saws. Cut-off wheel enables fast cuts, and thinner design minimizes the contact area of the object being cut with the cut-off wheel, resulting in faster, cleaner cuts cut . MULTI-PURPOSE: Designed for smooth polishing and cutting, such as glass tiles, wine bottles, ceramics, chamfers, tiles, etc. Dimensions: 4inch (100mm) diamond blade with 3/4inch (20mm) edged mandrel hole, Thickness: 0.04inch (1mm). Safe and stable: Can withstand dry/wet cutting and long-term continuous cutting working environments. (Note: Wear all applicable safety equipment when using these cut-off wheels.) color:Green Material:diamond Package Contents: 5 x glass cutting disc Only the above package content, other products are not