3" x .03" x 1/4" Cut-Off Wheels by Black Hawk Abrasives are thin but strong die grinder cutting discs built for fast slicing even on hard materials. Also, sometimes called whiz wheels, these 3 inch cutting wheels are made with reinforced fiberglass mesh and a heat-treated aluminum oxide grain bonding matrix for additional safety, lateral stability, and increased longevity. These 3" x .03" x 1/4" cutoff disc have a 3 inch diameter making them perfect for cutting in hard to reach places.