Convenient, Inclusive Design Unlike other abrasive discs, which are designed for just one job, our 3M™ Green Corps™ Cutting/Grinding Wheel can meet multiple challenges without the need for swapping out disks. The flat, reinforced inner surface can grind down or shape objects, while the thin outer edge can be used to make lateral cuts and gouges. This inclusive design negates the need for multiple abrasive tools, and can help to maximize production. 3M™ Ceramic Abrasive Grain 3M™ Green Corps™ Cutting/Grinding Wheel uses ceramic abrasive grain, which offers exceptional durability and improved cutting efficiencies. The unique “stay sharp” crystalline structure of the ceramic grain continually generates fresh cutting edges on the surface of the workpiece, ensuring an exceptionally fast and sustained cut. The fast and uniform cutting action helps to increase productivity and throughput. Additionally, the grain can withstand medium to high pressure production environments, contributing to the abrasive's long service life. These wheels should not be used on tools without guards.