General InformationBrand3M?Core TypeKeyedCountry Of OriginUnited StatesSold AsRollCalifornia ResidentsDimensions and SpecificationsBacking Thickness (Imperial)5 milCore Size (Imperial)3 inCore Size (Metric)76.2 mmMicron Grade40 ??mOverall Length (Imperial)150 ftOverall Length (Metric)45.72 mOverall Width (Imperial)0.63 inOverall Width (Metric)16 mmGritNon PertinentVolume22.28 cubic inch365.14 cm3Weight7.93 oz224.92 gOther DetailsRoll WindASOProduct CategoryCoated AbrasivesMaterial and CompositionAbrasive MaterialAluminum OxideBacking MaterialPolyester FilmProduct FormRollGradeNon Pertinent