The Standard Abrasives Quick Change TS A/O 2 Ply Disc 522108 is a high-quality sanding disc designed for metalworking applications. With a 3/4" diameter and 120 grit fine grade, this coated disc offers efficient sanding performance. The Quick Change TS A/O 2 Ply Disc features a TSM disc attachment system for easy and secure installation, allowing for a maximum RPM of 40,000. Made with aluminum oxide abrasive material, this product is manufactured in the United States and comes in a quantity of 100 units. Ideal for various metalworking projects, this disc ensures precise and consistent results.