Standard Abrasives A/O Unitized Wheel 873135, 731 3 in x 1/4 in x 1/4 in, 10 per case The Standard Abrasives Aluminum Oxide 700 Series Unitized Wheel has a medium to hard density with increased edge durability, making it a good match for tough deburring and cleaning applicationsIt provides the durability need for removing punched hole burrs on stainless steel, removing heavy flashing and medium-sized pits and scratches, and cleaning off heavy scale or weld discoloration. Product Information Brand 3M Part # 7000046912 Line Standard Abrasives Origin Country USA Product InformationAluminum oxide mineral is a good match for ferrous and non-ferrous metals, including aluminumCenter hole wheel comes in a range of diameters from 1-6? and attaches to tool with a unitized wheel mandrel (sold separately)Harder material density and increased edge durability over 600 Series Unitized Wheels provides a longer-lasting wheel for heavier-duty tasksMedium to high density construction with medium or fine grade aluminum oxide makes this abrasive a good match for mid-sequence applications such as cleaning of hard metals or general deburringOpen web is load resistant, contributing to longer abrasive service lifeRuns clockwise and counterclockwise, allowing greater flexibility and versatility when paired with tools and machines