External tools restore inch or metric, right handed or left handed fastener threads
One hand tool restores inch or metric, right handed or left handed fastener threads
Floating cutters are self-adjusting to any pitch and size within range
No need for calibration or identifying thread types
Automatically chases good thread sections to repair the damaged parts
Blades are made of high quality hardened tool steel and quided by the existing undamaged section of the thread in order to regroove the damaged section