Restores battered, rusted & corroded threads quickly. All thread sizes are clearly marked on the file. Select the correct size thread, overlap the file on a few good threads and use the tool just like a file to restore the damaged area. Works on right or left hand threads.                                                         Fine and coarse thread sizes: 0.8, 1, 1.25, 1.5, 1.75, 2, 2.5 & 3mm pitch.

Length: 230mm/9", Width: 11/mm/5/16" square