The United Abrasives SAIT 4×0.045×3/8″ Cutting Wheel 23172 is a high-performance cutting wheel designed for metalworking applications. Made with ceramic aluminum oxide material, this cutting wheel offers durability and efficient cutting capabilities. With a diameter of 4 inches and a thickness of .045 inches, it is suitable for cutting through various types of metals and stainless steel. The package includes a total of 9 cutting wheels, each with an arbor size of 5/8 inches, allowing for easy installation on cut-off machines. With a maximum RPM of 19,000, this cutting wheel is a reliable choice for precision cutting in various industrial settings.