Arc Abrasives 53138AH Finishing Abrasive Discs are 6 Inch in diameter with a 1/4-inch arbor hole. They can be used individually or stacked with varying face width discs. The material resists loading and over-cutting and is highly conformable to easily finish the hard-to-reach areas of a work piece. These discs can be used with Velcro holders or on portable tools or pedestal or bench grinders for finishing or removing small burrs on a variety of different metals. Grade A VFN. Color: Maroon.