Standard Abrasives A/O Unitized Wheel 863110, 631 2 in x 1/4 in x 1/4 in, 10 per case Wheels in the Standard Abrasives Aluminum Oxide Unitized Wheel 600 Series have a soft to medium density, making them a good match for medium-pressure cleaning and blending on flat or contoured partsThese non-woven abrasive wheels are also effective for removing small burrs and radiusing edges. Product Information Brand 3M Part # 7000144629 Origin Country USA Product Type Non-woven Wheels 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 1-12? and attaches to tool with a unitized wheel mandrel (sold separately)Increased edge durability over the 500 Series offers better cut and adds life for light deburring and blending applicationsOpen web is load resistant, contributing to longer abrasive service lifeRuns clockwise and counterclockwise, allowing greater versatility when paired with tools and machinesSoft/Medium density wheel blends surfaces to a nice finish