The "Southern Style" or "True Round" SETS ROUND and STAYS ROUND through all adjustments
- Eccentric design and opposing pressures of the adjusting and locking mechanisms.
- Color coded for easy identification of the "Go" and "No Go" gage.
- The aluminum body makes large gage rings light weight and easier to use.
- "Automatic Helical Adjustment". The Helix Path remains true and in alignment throughout the life of the gage.
