Vermont Gage Ring Thread Go/NoGo Gages – Fractional Sizes is Made to Class X tolerances per ANSI B1 and ia Supplied with a Certificate of Accuracy it is a Furnished in tool steel 60/62Rc.
All thread gages are marked with nominal size, threads per inch(inch) or pitch(metric), class of fit and pitch diameters.
Item Specifications
- Vermont Gage
- Ring
- No
- 3T
- NoGo Member
- 7/16″
- 0.4559″
- 3A
- UN
- 1/2-16








