Nice lot of Genuine Norton 46 Grit surface grind wheels. All these have φ1.25" center hole for mounting on a standard surface grinder. This lot includes these wheels: original spec: φ8.0" OD x 1/2" wide x 1.25" center hole, 32A46-G12VBEP, wheel used, OD measures appx φ7.3", ///// original spec φ7.0" OD x 1/2" wide x 1.25" center hole, 32A46-HVBEP, wheel appears to be new, still measuring φ7.0" OD, ///// Original spec φ7.0" OD x 1/2" wide x 1.25" center hole, 32A46-GVBE, wheel used, OD measures appx φ6.25" OD, ///// and lastly: φ7.0" OD x 1.0" wide x 1.25" center hole, (this is a 1.0" wide wheel with a recess φ2.75" x 1/2" deep), spec 32A46-HVBEP, wheel appears to still be new, OD measures φ7.0". Nice collection of probably the most commonly used grinding wheel, all Genuine Norton. Will be packed securely, shipped by USPS