Self-Opening (SO) - Automatic release for repeatable number of threads.
- Compatible with many RIDGID Power Threading Machines.
- Constructed out of steel and cast iron for long service life.
- Uses Universal Die set (sold separately) for 1 to 2-inch pipe.
- Integral through-head oiling system for peak performance.
- Semi-Automatic (SA) - Can be quickly adjusted from size to size with manual release.