General InformationBrandStandard Abrasives?Attachment TypeCenter HoleCountry Of OriginUnited StatesCalifornia ResidentsDimensions and SpecificationsCenter Hole Diameter (Imperial)0.188 inCenter Hole Diameter (Metric)4.763 mmFace Width (Imperial)1 inFace Width (Metric)25.4 mmMaximum Speed30000 rpmOverall Diameter (Imperial)1 inOverall Diameter (Metric)25.4 mmGritNon PertinentMaterial and CompositionAbrasive MaterialAluminum OxideGradeFineProduct FormWheelCertifications and StandardsDensity RatingMedium/Hard