Price For: Each Item: Flaring Cup Grinding Wheel Max. RPM: 6000 Specification: 4NZ14-R Arbor Size: 5/8"-11 Wheel Type: Type 11 Thickness: 2" Bond Type: Resin Grit: 14 Back Dia.: 4-3/4" Rim Thickness: 1-1/2" Back Thickness: 3/4" Abrasive Material: Zirconia Alumina Face Dia.: 6" Country of Origin (subject to change): United States