Southern Gage was founded in 1955 in Erin, TN as an outgrowth of the Woodward Company. It grew to be a full service gage manufacturer with emphasis on thread gaging. During the 1980's Southern Gage became known for its educational and training programs on thread form and gaging. In 1995, the owner of Glastonbury Gage purchased Southern Gage from ITW. In March 1999, the GSG Erin operations occupied its new 42,000 square foot state of the art manufacturing facility. It includes 5,000 square feet of laboratory space, temperature and humidity control for the entire plant, CNC thread grinding equipment and a streamlined process work flow. 
 
In July 2001 GSG consolidated customer service and plain cylindrical production to improve deliveries and customer response, while this effort was successful we at GSG continue to find ways of improving delivery and customer service. We intend to build on this platform to offer our customers quality products and services at competitive prices.

Artifacts and Surveillance Masters

Glastonbury Gage has designed a built a range of surveillance and calibration artifacts to address your Micrometers, Calipers, Depth Gages, and CMMs.  The 112 series Mic Masters are available in inch or metric and allow you to quickly calibrate or test micrometers up to 12” (300mm).  A DM1 depth master can be used to very accurately set and calibrate traditional depth gages.

And how to do you ensure reliability of your CMM between annual calibrations?  A golden part doesn’t have tracebility. But the Glastonbury CMM QuickChek is a calibrated artifact that verifies your Coordinate Measuring Machine’s sensor form error, machine squareness, volumetric and linear accuracy.

Thread Plugs & Rings

Glastonbury and Southern Gage specialize in thread ring and thread plugs.  Between their two factories, Glastonbury can supply you with ACME, API, NPT, standard inch and standard metric thread gages.

Master Discs & Cylindrical Rings

Known for their high precision, Glastonbury and Southern Gage make outstaning setting plugs, discs, and rings.  Please contact us with your specifications for a quote and lead time.

Taper Plug and Ring Gages

In the Unites States, Glastonbury and Southern Gage has become known as a leader in taper gages.  So much so that you can even depend on them for repair work on your old taper rings or plugs.  To take advantage of GSG’s experince in the field of taper gages, please contact us today.

Variable Thread Inspection with Tri-Roll Comparators

Are you looking for more than just a “it fits / it doesn’t fit” answer to your thread questions?  We’ll Tri-Roll thread comparators maybe your answer.  They precise with constant gageing pressure, quick to change over sizes, reduced inspection time compared to traditional Go/NoGo, and definitive with a precise indicator reading of size.  A Tri-Roll gage reads the actual size of the pitch diameter showing its position in relation to the pitch diameter tolerance assigned.

To receive more information, please call 440-892-9277