During a cleaning operation, the abrasive Threadstones remove small nicks and bruises. Heavier damage is highlighted. This highlighted damage allows for objective decisions on thread repair.
The use of a specially ground peening chisel in combination with the Threadstone makes repair of heavy damage possible without removing a bolt from its place without a major set-up.
Threadstones can be mounted in a drill adapter to clean and repair in-place studs.