✅ The 115mm (4.5-inch) diameter diamond grinder wheel is 5mm (1/5 inch) segment thick with a total wheel thickness of 19.4mm (49/64 inch). It features a 22.2mm (7/8 inch) arbor, external segment length - 32.5mm (1-9/32 inch), internal length 25.4mm (1 inch), segment width - 8mm (5/16 inch). Equipped with 18 double row segments, it ensures faster, smoother grinding. ✅ High Quality Construction: Сoncrete grinder wheel сrafted through molded sintering and single-layer brazing, this brazed diamond tool is durable and built for longevity. Eight strategically placed cooling holes help regulate temperature and reduce noise, maintaining the wheel’s optimal performance. ✅ Universal Fit: Masonry grinding wheel designed to fit most 4.5-inch and 5-inch angle grinders, this versatile wheel is ideal for construction, renovation, and maintenance projects, offering a reliable fit for a wide range of tasks. ✅ Exceptional Performance: The 4.5-inch and 5-inch diamond concrete grinding wheel enables smooth, precise finishes on materials like concrete, stone, and cement. Its efficiency and precision make it suitable for professionals and DIY users alike, handling projects quickly and accurately. ✅ Optimal Performance: This diamond grinding wheel is designed for powerful, efficient material removal. Featuring 18 double row segments maximum of 13300 RPM, grit type: fine, allowing users to achieve a precise, smooth finish on concrete, stone, and cement surfaces, making it ideal for both professional and DIY applications. MonoPro diamond grinder wheel is an essential tool in various industries, known for its exceptional grinding capabilities and durability. Concrete grinding wheel 4 1/2 for angle grinder consists of a strong steel body and 18 double row segments with diamond particles. Diamond concrete grinding wheel is engineered for grinding hard materials such as concrete, stone, cement, brick and ceramics with remarkable efficiency. One of the key advantages of stone grinding wheel is their ability to maintain sharpness and effectiveness over extended use. 8 cooling holes reduce wear and weight and improve work productivity and reduce costs. The angle grinder wheel is designed keeping users in mind – its stable grinding performance minimizes bounce, ensuring not only a smooth grinding process but also enhanced safety during operation.