Restore internal and external threads by filing, where the use of taps and dies are impractical. | | Features and Benefits | • Long lasting, fast cutting teeth | • Versatile – Designed to restore right and left hand, internal and external threads | • Overlaps several good threads and files the damaged ones | | Notes | • Thread restoring files are available in ISO, Whit/BSF, UNF/UNC and BSP thread types