Medium-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 deburringHarder material density and increased edge durability over 600 Series Unitized Wheels provides a longer-lasting wheel for heavier-duty tasksAluminum oxide mineral is a good match for ferrous and non-ferrous metals, including aluminumRuns clockwise and counterclockwise, allowing greater flexibility and versatility when paired with tools and machinesOpen web is load-resistant, contributing to longer abrasive service lifeCenter hole wheel comes in a range of diameters from 1-6˝ and attaches to tool with a unitized wheel mandrel