3M Green Corps cutting/grinding wheel is a durable, fast cutting wheel featuring high cut rates and a long life. These versatile wheels are designed to be used both as a depressed center grinding wheel and as a cut-off wheel - making them ideal for cutting, grinding, gouging and more. - 3M Ceramic abrasive grain offers excellent cut rate and life for better performance. Rigid, reinforced resin-bonded wheel is designed to be used both as a depressed center grinding wheel and as a cut-off wheel for use on stainless and mild steel.