Thread Restoring Files Internal and External

Thread restoring files restore damaged thread to a reusable condition for all popular thread sizes on pipe and pipe fittings as well as bolts and nuts, imperial thread as well as metric. There are 4 threads on each side, 8 total per file. The files without the nipple are for external thread repair only. The cut nipple added on the end allows the one tool to repair both the internal and external thread. Thread Files are sold singularly, or as a four piece pouched set of one of each, or in a 24 piece counter display box.