WL 3X1/4X1/4 F S/C MD 632 UTZ SA 863235 Wheels in the Standard Abrasives Silicon Carbide Unitized Wheel 600 Series have a soft to medium density, making them a good match for medium-pressure finishing and polishing on flat or contoured partsChoose a 600 Series wheel when your application calls for an upgrade in edge durability over a Series 500 wheel. Product Information Brand 3M Part # 7000046909 Origin Country USA Product InformationIncreased edge durability over the 500 Series offers better cut and lengthens abrasive lifeOpen web is load resistant, contributing to longer abrasive service lifeRuns clockwise and counterclockwise, allowing greater versatility when paired with tools and machinesSilicon Carbide mineral is suitable for ferrous and non-ferrous metals, including exotic metals and titanium, as well as compositesSoft/Medium density silicon carbide finely finishes and polishes on medium-pressure applications