Opti-Viewer Neck Thread Inspection Tool
- The ideal tool to verify Sustained Load Cracks found by an eddy current test instrument in 6351 alloy aluminum cylinders
- The Opti-Viewer provides 2x magnification, which is the federally required magnification
- Excellent way to inspect cylinder threads for dirt, corrosion, pitting, damage and wear.
- The LED light source operates on a AAA battery (included)
- Made for ¾”-NPSM scuba cylinder neck opening