Diamond Superabrasive Block 6200J 3M™ 3M™ The diamond superabrasive block 6200J 3M™ is a high-precision sanding and finishing tool designed for demanding applications on hard materials such as metals, ceramics, and composites. This block uses diamond particles, the hardest known material, to provide extremely efficient and long-lasting cutting action. With its flexible structure, the 6200J block easily conforms to contours and complex surfaces, ensuring a uniform and precise finish even in hard-to-reach areas. It is particularly used in industries such as aerospace, automotive, and industrial manufacturing, where finish quality and tool longevity are critical. This superabrasive block guarantees superior performance and exceptional durability, reducing the need for frequent tool replacement. Learn more