Product Description
- Precision cut threads, accurately formed for consistent, exact rethreading
- For repairing damaged threads on bolts or studs
- Will not crosscut or undercut the threads as a cutting die would
- 7 piece National Fine rethreading set includes 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" and 5/8"