Ball bearings Used for repairing and altering the profile of Freud router bits Will fit most brands of router bits Feature superior quality ball bearings Lubricated with a high temperature lubricant to withstand the stresses of turning at 22,000 rpms Shielded to keep out the unwanted wood dust and chips that greatly reduce bearing life Assorted sizes include 62-100, 62-102, 62-104, and 62-108 Carded