General InformationBrandStandard Abrasives?Attachment TypeCenter HoleCountry Of OriginUnited StatesSold AsCaseCalifornia ResidentsDimensions and SpecificationsCenter Hole Diameter (Imperial)0.25 inCenter Hole Diameter (Metric)6.35 mmFace Width (Imperial)0.5 inFace Width (Metric)12.7 mmMaximum Speed22000 rpmOverall Diameter (Imperial)2 inOverall Diameter (Metric)50.8 mmGritNon PertinentWidth3.06 in7.78 cmHeight2.69 in6.83 cmLength5.25 in13.34 cmVolume43.22 cubic inch708.28 cm3Weight12.45 oz352.89 gMaterial and CompositionAbrasive MaterialAluminum OxideGradeMediumProduct FormWheelCertifications and StandardsDensity RatingHard