General 177-1 Thread Repair File No. 1
The 177-1 Thread Repair File No. 1 is ideal for restoring damaged external threads on studs, bolts, screws, plumbing pipe and pipe fittings.
FeaturesContains four files covering eight thread pitches Also can be used to restore rusted or corroded fasteners Doubles as a screw pitch gage Made of carbon steel, black oxide-finished to prevent rust
SpecificationsThread pitches covered: 11, 12, 13, 14, 16, 18, 20 and 24 T.P.I. (threads per inch)