Designed for cleaning and reforming M20 x 1.5 threads found in exhaust system pipes.
The introduction of a short thread retainer ensures that the thread is cut as close as possible to the inner seat of the exhaust pipe.
For use with any M20 x 1.5 mm thread.
Use with a 21 mm socket or wrench. Total length: 50 mm.
Use with lubricant to clean threads and remove any removed metal.