Engineered for efficiency and durability, these Quick Change Discs are crafted from high-quality aluminum oxide, making them an ideal choice for both flat and contoured surfaces. With a grit rating of 80, they provide an effective balance between aggressive material removal and a smooth finish, ensuring optimal performance in various sanding applications. Designed with a robust 2-ply construction, these discs can withstand high RPMs of up to 20,000, allowing for rapid and efficient operation. Packaged in a convenient box of 25, they are perfect for professionals seeking reliable abrasives for welding and gas essentials.