Description of Dynabrade 79011 2 Inch 12 Inch DynaCut
A good high performance mineral that is sharp, hard and tough. It is a versatile mineral that works well under high heat and grinding pressure applications but can also be effective on many materials at lower grinding pressure levels. Metalwork finishing on stainless steel and nickel alloys, forged steel and aluminum components.
Should have read the details more carefully as $12 is 10x more expensive than the belts I found. Saw photo show 3 and thought this is what I get. But now that I've searched more and found a cheap supplier, this will be my last purchase from this place.